user docs: Remove several "send a message" docs.

These are now subsumed by compose-and-reply. Probably we'll want to write a
"PMs and Group PMs" doc at some point so that we have something if people
search for whether Zulip has Group PMs.

templates/zerver/help/include/sidebar_index.md

@@ -23,9 +23,6 @@
 
 ## Sending messages
 * [Compose and reply](/help/compose-and-reply)
-* [Send a stream message](/help/send-a-stream-message)
-* [Private messages](/help/send-a-private-message)
-* [Group private messages](/help/send-a-group-of-people-a-private-message)
 * [Format messages using Markdown](/help/format-your-message-using-markdown)
 * [Preview messages before sending](/help/preview-your-message-before-sending)
 * [Message drafts](/help/view-and-edit-your-message-drafts)
@@ -40,7 +37,6 @@
 * [Status messages](/help/format-your-message-using-markdown#status-messages)
 * [@-mention a user](/help/at-mention-a-team-member)
 * [Write in a different language](/help/send-a-message-in-a-different-language)
-* [Reply to a message](/help/reply-to-a-message)
 * [Edit or delete a message](/help/edit-or-delete-a-message)
 * [Message a stream by email](/help/message-a-stream-by-email)
 * [Notify everyone on a stream](/help/notify-everyone-on-a-stream)

templates/zerver/help/reply-to-a-message.md

@@ -1,55 +0,0 @@
-# Reply to a message
-There are three ways to reply to a message in Zulip: by clicking on a
-message, through the message actions dropdown, or by using keyboard
-shortcuts.
-
-## Reply to a message by clicking on a message
-1. Click on the message you want to reply to.
-
-2. Upon clicking on a message, the compose box will appear with the
-**Stream** and **Topic** fields autocompleted to match the message you
-selected.
-
-3. Type your reply in the **Compose your message here...** field.
-
-4. Once you have finished completing your message, you can now send your
-message to the specified stream under the specified topic by pressing the
-Enter key or clicking the **Send** button, depending on your settings.
-
-## Reply to a message through the message actions dropdown
-{!message-actions-menu.md!}
-
-2. Select the **Reply** option from the dropdown to reply to the selected
-message. A message compose box will appear with the **Stream** (outlined in red
-below) and **Topic** (outlined in green below) fields autofilled to match the
-message you selected.
-
-3. Type your reply in the **Compose your message here...** field.
-
-4. Once you have finished completing your message, you can now send your
-message to the specified stream under the specified topic by pressing the
-Enter key or clicking the **Send** button, depending on your settings.
-
-## Reply to a message by using keyboard shortcuts
-1. While viewing messages in the message table, you will notice a blue
-highlight around one of the messages on your screen. Change the selected
-message is highlighted by scrolling through your messages or pressing the
-arrow, `j`, or `k` keys on your keyboard.
-
-2. Once you the message you want to reply to is highlighted, press the `r`
-key on your keyboard.
-
-2. Upon pressing the `r` key, the compose box will appear with the
-**Stream** and **Topic** fields autocompleted to match the message you
-selected.
-
-3. Type your reply in the **Compose your message here...** field.
-
-4. Once you have finished completing your message, you can now send your
-message to the specified stream under the specified topic by pressing the
-Enter key or clicking the **Send** button, depending on your settings.
-
-!!! tip ""
-    You can always cancel your message by clicking the x (<i
-    class="icon-vector-remove"></i>) icon located at the top right corner of
-    your compose box or pressing the `Esc` key.

templates/zerver/help/send-a-group-of-people-a-private-message.md

@@ -1,33 +0,0 @@
-# Send a group of people a private message
-
-You can easily send a new group private message through the compose box.
-
-!!! tip ""
-    You can view your group private messages conversations by clicking the
-    **Private messages** filter in the left sidebar or a group under the
-    **Group PMs** section in the right sidebar.
-
-1. Click the **New private message** button located in the compose box at
-the bottom of your screen.
-
-2. Upon clicking on the the **New private message** button, the
-compose box open, showing the **one or more people...** and **Compose
-your message here...** inputs.
-
-    ![Private message](/static/images/help/private-box.png)
-
-3. In the **one or more people...** field, input all of the usernames or
-emails address of the users you want to send a group private message to.
-When you begin typing an email address or username, autocomplete suggestions
-will appear.
-
-5. Enter your message in the **Compose your message here...** field.
-
-6. Once you have finished completing your message and adding the recipients,
-you can now send your message to the specified group of users by pressing
-the Enter key or clicking the **Send** button, depending on your settings.
-
-!!! tip ""
-    You can always cancel your message by clicking the x (<i
-    class="icon-vector-remove"></i>) icon located at the top right corner of
-    your compose box or pressing the `Esc` key.

templates/zerver/help/send-a-private-message.md

@@ -1,87 +0,0 @@
-# Send a private message
-
-Follow the following steps to send a new private message.
-
-## Open a new compose box for private messaging
-
-There are several ways to get a compose box for private messaging.
-
-### Fill out all the fields yourself
-
-1. If the compose box is not currently open, click the **New private message**
-button located near the bottom of the screen.
-The compose box will open, showing the **one or more people...** and
-**Compose your message here...** inputs.
-
-    ![Private message](/static/images/help/private-box.png)
-
-2. In the **one or more people...** field, input the username or email
-address of the user you want to privately message. When you begin
-typing an email address or username, autocomplete suggestions will
-appear.
-
-### Autopopulate private message addressee
-
-You can also compose a private message to someone using the user card. There
-are three ways to get to the user card.
-
-1. In the user list on the right sidebar, hover over the name of the user you
-want to privately message to reveal a down chevron (<i class="icon-vector-
-chevron-down"></i>) icon to the right of the user's name. Click on the {!down-
-chevron.md!}
-
-    !!! tip ""
-        You can search for a specific user by entering the user's name in
-        the **Search users** input.
-
-2. Click on the @mention of someone in chat text.
-
-3. Click on the name of the author of a message.
-
-Once you have the user card displayed, select the **Send private message**
-option from the actions dropdown.  This will open the compose box with the
-target user as the recipient.
-
-!!! keyboard_tip ""
-    You can open a compose box with the addressee autopopulated if you press `R`
-    while a message is highlighted, but the compose box is not open.
-
-## View your private message history with a user and compose
-
-If you'd like to look at your message history with a user while you
-compose your message, do the following:
-
-1. In the user list on the right sidebar, click on the name of the user
-you want to privately message.
-
-    !!! tip ""
-        You can search for a specific user by entering the user's name in
-        the **Search users** input.
-
-2. Upon clicking on the user's name, your view will be narrowed to your
-private message history with the selected user, and the compose box will be
-transformed to include the selected user's email address in the
-**one or more people...** field.
-
-## Compose and send the private message
-
-1. Once you have the private message compose box open, you can enter your
-message in the **Compose your message here...** field.
-
-2. Once you have finished completing your message and adding the recipients,
-you can now send your message to the specified user(s) by pressing the Enter
-key or clicking the **Send** button, depending on your settings.
-
-    !!! tip ""
-        Whether or not the **Press Enter to send** option is enabled, pressing
-        `Ctrl` + `Enter` or `Tab` then `Enter` sends a message, while pressing
-        `Shift` + `Enter` inserts a new line in your message.
-
-## Cancel a private message
-
-You can always cancel your message by clicking the x (<i
-class="icon-vector-remove"></i>) icon located at the top right corner of
-your compose box
-
-!!! keyboard_tip ""
-    You can close the compose box by pressing the `Esc` key.

templates/zerver/help/send-a-stream-message.md

@@ -1,37 +0,0 @@
-# Send a new stream message
-
-Follow the following steps to send a new stream message.
-
-1. Click the **New topic** button located in the compose box
-at the bottom of your screen.  The compose box will open, showing the
-**Stream**, **Topic**, and **Compose your message here...** inputs.
-
-    ![Stream message](/static/images/help/new-stream.png)
-
-2. In the **Stream** field, input the name of the stream you want to
-send to. When you begin typing a stream name, autocomplete suggestions
-will appear.
-
-3. Once you have entered the stream name in the **Stream** field, enter the
-topic for your message in the **Topic** field.
-
-    !!! warn ""
-        **Note:** Your topic name can be no longer than 60 characters.
-
-4. Enter your message in the **Compose your message here...** field.
-
-5. Once you have finished completing your message and adding the recipients,
-you can now send your message to the specified stream under the specified
-topic by pressing the Enter key or clicking the **Send** button, depending
-on your settings.
-
-    !!! tip ""
-        Whether or not the **Press Enter to send** option is enabled, pressing
-        `Ctrl` + `Enter` or `Tab` then `Enter` sends a message, while pressing
-        `Shift` + `Enter` inserts a new line in your message.
-
-
-!!! tip ""
-    You can always cancel your message by clicking the x (<i
-    class="icon-vector-remove"></i>) icon located at the top-right corner of
-    your compose box or pressing the `Esc` key.

templates/zerver/help/verify-that-your-message-has-been-successfully-sent.md

@@ -24,9 +24,7 @@ Follow the following steps to to see this in action.
 
 1. Disconnect your computer from the Internet.
 
-2. Send a message by following the instructions located
+2. [Compose a message](/help/compose-and-reply) and click **Send**.
-[here](/help/send-a-stream-message) for public streams or
-[here](/help/send-a-private-message) for private messages.
 
 3. After you send your message, it will appear below all the previous
 messages, but with no timestamp.  If the browser gets an error from