diff --git a/templates/zerver/app/markdown_help.html b/templates/zerver/app/markdown_help.html
deleted file mode 100644
index 384d505290..0000000000
--- a/templates/zerver/app/markdown_help.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<div class="overlay-modal hide" id="message-formatting" tabindex="-1" role="dialog"
-    aria-label="{{ _('Message formatting') }}">
-    <div class="modal-body" data-simplebar data-simplebar-auto-hide="false">
-        <div id="markdown-instructions">
-            <table class="table table-striped table-condensed table-rounded table-bordered help-table">
-                <thead>
-                    <tr>
-                        <th>{% trans %}You type{% endtrans %}</th>
-                        <th>{% trans %}You get{% endtrans %}</th>
-                    </tr>
-                </thead>
-
-                <tbody>
-                </tbody>
-            </table>
-        </div>
-    <hr>
-    <a href="/help/format-your-message-using-markdown" target="_blank" rel="noopener noreferrer">{{ _('Detailed message formatting documentation') }}</a>
-    </div>
-</div>
diff --git a/tools/check-templates b/tools/check-templates
index 83d0dbf28c..40e85ed953 100755
--- a/tools/check-templates
+++ b/tools/check-templates
@@ -122,8 +122,6 @@ def check_html_templates(templates: Iterable[str], all_dups: bool, fix: bool) ->
             # These use various whitespace-dependent formatting that
             # prevent cleaning them.
             "templates/corporate/zephyr-mirror.html",
-            # Can't clean this because of `preserve_spaces`
-            "templates/zerver/app/markdown_help.html",
         ]
         validate(fn=fn, check_indent=(fn not in bad_files))
 
@@ -133,8 +131,6 @@ def check_html_templates(templates: Iterable[str], all_dups: bool, fix: bool) ->
         # for code blocks that prevent cleaning it.  Might make sense
         # to convert it to a /help/ Markdown article.
         "templates/corporate/zephyr-mirror.html",
-        # Can't clean this because of `preserve_spaces`
-        "templates/zerver/app/markdown_help.html",
     ]
     # TODO: Clean these files
     for fn in templates: