UX: Stop taking you to user page when compose private message is called

app/assets/javascripts/discourse/routes/application.js.es6

@@ -53,9 +53,18 @@ const ApplicationRoute = Discourse.Route.extend(OpenComposer, {
     },
 
     composePrivateMessage(user, post) {
-      const self = this;
-      this.transitionTo('userActivity', user).then(function () {
-        self.controllerFor('user-activity').send('composePrivateMessage', user, post);
+
+      const recipient = user ? user.get('username') : '',
+          reply = post ? window.location.protocol + "//" + window.location.host + post.get("url") : null;
+
+      // used only once, one less dependency
+      const Composer = require('discourse/models/composer').default;
+      return this.controllerFor('composer').open({
+        action: Composer.PRIVATE_MESSAGE,
+        usernames: recipient,
+        archetypeId: 'private_message',
+        draftKey: 'new_private_message',
+        reply: reply
       });
     },
 

app/assets/javascripts/discourse/routes/user.js.es6

@@ -11,21 +11,6 @@ export default Discourse.Route.extend({
   },
 
   actions: {
-    composePrivateMessage(user, post) {
-      const recipient = user ? user.get('username') : '',
-          reply = post ? window.location.protocol + "//" + window.location.host + post.get("url") : null;
-
-      // used only once, one less dependency
-      const Composer = require('discourse/models/composer').default;
-      return this.controllerFor('composer').open({
-        action: Composer.PRIVATE_MESSAGE,
-        usernames: recipient,
-        archetypeId: 'private_message',
-        draftKey: 'new_private_message',
-        reply: reply
-      });
-    },
-
     willTransition(transition) {
       // will reset the indexStream when transitioning to routes that aren't "indexStream"
       // otherwise the "header" will jump