Remove transitional feature_flags.alert_words flag.

(imported from commit f00eba8a12054e9771105e341e2652a53271e298)

static/js/alert_words.js

@@ -11,7 +11,7 @@ function escape_user_regex(value) {
 }
 
 exports.process_message = function (message) {
-    if (!feature_flags.alert_words || !exports.notifies(message)) {
+    if (!exports.notifies(message)) {
         return;
     }
 

static/js/alert_words_ui.js

@@ -1,7 +1,4 @@
 $(function () {
-    if (!feature_flags.alert_words) {
-        $('#word-alert-area').remove();
-    }
     var word_list = $('#word-alerts');
     _.each(alert_words.words, function (word) {
         var li = templates.render('alert_word_settings_item', {'word': word});

static/js/ui.js

@@ -1433,7 +1433,7 @@ $(function () {
 
     var notification_docs = $("#notification-docs");
     notification_docs.popover({"placement": "right",
-                               "content": templates.render('notification_docs', {alert_words: feature_flags.alert_words}),
+                               "content": templates.render('notification_docs', {}),
                                "trigger": "manual"});
     $("body").on("mouseover", "#notification-docs", function (e) {
         notification_docs.popover('show');

static/templates/notification_docs.handlebars

@@ -7,9 +7,7 @@
 <li>a private message</li>
 <li>a message that @-mentions you</li>
 <li>a message to a stream you have configured to show desktop notifications (via the streams page)</li>
-{{#if alert_words}}
-  <li>any custom word alerts that you have configured</li>
-{{/if}}
+<li>any custom word alerts that you have configured</li>
 </ul>
 <br />
 <p>If the Zulip window is in focus and you can already see the message when it arrives, we won't notify you.</p>