node_tests: Remove unnecessary zrequire calls for ES6 modules.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

frontend_tests/node_tests/hashchange.js

@@ -35,7 +35,6 @@ set_global("top_left_corner", {
 });
 
 const people = zrequire("people");
-zrequire("localstorage");
 const hash_util = zrequire("hash_util");
 const hashchange = zrequire("hashchange");
 const stream_data = zrequire("stream_data");

frontend_tests/node_tests/recent_topics.js

@@ -165,7 +165,6 @@ set_global("stream_data", {
 
 zrequire("message_util");
 zrequire("narrow_state");
-zrequire("localstorage");
 const people = zrequire("people");
 let rt = zrequire("recent_topics");
 

frontend_tests/node_tests/tutorial.js

@@ -129,7 +129,6 @@ const messages = {
 // This is an example of a deep unit test, where our dependencies
 // are easy to test.  Start by requiring the dependencies:
 zrequire("recent_senders");
-zrequire("localstorage");
 const unread = zrequire("unread");
 const stream_topic_history = zrequire("stream_topic_history");
 const recent_topics = zrequire("recent_topics");

frontend_tests/node_tests/ui_init.js

@@ -123,16 +123,12 @@ rewiremock.proxy(() => zrequire("notifications"), {
     "../../static/js/favicon": {},
 });
 zrequire("pm_list");
-zrequire("list_cursor");
-zrequire("localstorage");
 zrequire("keydown_util");
 zrequire("stream_list");
 zrequire("topic_list");
 zrequire("sent_messages");
 zrequire("top_left_corner");
 zrequire("starred_messages");
-zrequire("user_status");
-zrequire("user_status_ui");
 zrequire("recent_topics");
 
 run_test("initialize_everything", () => {