node_test: Avoid make_zjquery.

We just use $.clear_all_elements() now.

frontend_tests/node_tests/compose.js

@@ -113,7 +113,7 @@ function stub_out_video_calls() {
 
 function reset_jquery() {
     // Avoid leaks.
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
 }
 
 const new_user = {
@@ -206,7 +206,7 @@ run_test("validate_stream_message_address_info", () => {
 
 run_test("validate", () => {
     function initialize_pm_pill() {
-        set_global("$", make_zjquery());
+        reset_jquery();
 
         $("#compose-send-button").prop("disabled", false);
         $("#compose-send-button").trigger("focus");
@@ -1891,7 +1891,7 @@ run_test("create_message_object", () => {
 });
 
 run_test("nonexistent_stream_reply_error", () => {
-    set_global("$", make_zjquery());
+    reset_jquery();
 
     const actions = [];
     $("#nonexistent_stream_reply_error").show = () => {

frontend_tests/node_tests/input_pill.js

@@ -93,7 +93,7 @@ run_test("basics", () => {
 });
 
 function set_up() {
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
     const items = {
         blue: {
             display_value: "BLUE",

frontend_tests/node_tests/settings_bots.js

@@ -121,7 +121,7 @@ function test_create_bot_type_input_box_toggle(f) {
 }
 
 function set_up() {
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
 
     // bunch of stubs
 

frontend_tests/node_tests/settings_user_groups.js

@@ -393,7 +393,7 @@ run_test("with_external_user", () => {
     };
 
     // Reset zjquery to test stuff with user who cannot edit
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
 
     let user_group_find_called = 0;
     const user_group_stub = $(`div.user-group[id="${CSS.escape(1)}"]`);

frontend_tests/node_tests/upload.js

@@ -368,7 +368,7 @@ run_test("uppy_config", () => {
 });
 
 run_test("file_input", () => {
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
 
     upload.setup_upload({mode: "compose"});
 
@@ -391,8 +391,7 @@ run_test("file_input", () => {
 });
 
 run_test("file_drop", () => {
-    set_global("$", make_zjquery());
-
+    $.clear_all_elements();
     upload.setup_upload({mode: "compose"});
 
     let prevent_default_counter = 0;
@@ -431,7 +430,7 @@ run_test("file_drop", () => {
 });
 
 run_test("copy_paste", () => {
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
 
     upload.setup_upload({mode: "compose"});
 
@@ -472,7 +471,7 @@ run_test("copy_paste", () => {
 });
 
 run_test("uppy_events", () => {
-    set_global("$", make_zjquery());
+    $.clear_all_elements();
     const callbacks = {};
     let uppy_cancel_all_called = false;
     let state = {};