Remove 'defer_realtime_updates' feature flagging

This is now enabled by for everyone, so we don't need the feature flag
any more.

h/static/scripts/streamer.js

@@ -19,8 +19,8 @@ var Socket = require('./websocket');
  * @param settings - Application settings
  */
 // @ngInject
-function Streamer($rootScope, annotationMapper, annotationUI, features, groups,
-                  session, settings) {
+function Streamer($rootScope, annotationMapper, annotationUI, groups, session,
+                  settings) {
   // The randomly generated session UUID
   var clientId = uuid.v4();
 
@@ -84,8 +84,7 @@ function Streamer($rootScope, annotationMapper, annotationUI, features, groups,
       break;
     }
 
-    if (!features.flagEnabled('defer_realtime_updates') ||
-        !annotationUI.isSidebar()) {
+    if (!annotationUI.isSidebar()) {
       applyPendingUpdates();
     }
   }

h/static/scripts/test/streamer-test.js

@@ -67,7 +67,6 @@ inherits(FakeSocket, EventEmitter);
 describe('Streamer', function () {
   var fakeAnnotationMapper;
   var fakeAnnotationUI;
-  var fakeFeatures;
   var fakeGroups;
   var fakeRootScope;
   var fakeSession;
@@ -80,7 +79,6 @@ describe('Streamer', function () {
       fakeRootScope,
       fakeAnnotationMapper,
       fakeAnnotationUI,
-      fakeFeatures,
       fakeGroups,
       fakeSession,
       fakeSettings
@@ -110,10 +108,6 @@ describe('Streamer', function () {
       isSidebar: sinon.stub().returns(true),
     };
 
-    fakeFeatures = {
-      flagEnabled: sinon.stub().returns(false),
-    };
-
     fakeGroups = {
       focused: sinon.stub().returns({id: 'public'}),
     };
@@ -194,29 +188,8 @@ describe('Streamer', function () {
       activeStreamer.connect();
     });
 
-    context('when realtime updates are not deferred', function () {
-      it('should load new annotations', function () {
-        fakeWebSocket.notify(fixtures.createNotification);
-        assert.ok(fakeAnnotationMapper.loadAnnotations.calledOnce);
-      });
-
-      it('should unload deleted annotations', function () {
-        fakeAnnotationUI.annotationExists.returns(true);
-        fakeWebSocket.notify(fixtures.deleteNotification);
-        assert.ok(fakeAnnotationMapper.unloadAnnotations.calledOnce);
-      });
-
-      it('ignores notifications about annotations in unfocused groups', function () {
-        fakeGroups.focused.returns({id: 'private'});
-        fakeWebSocket.notify(fixtures.createNotification);
-        assert.notCalled(fakeAnnotationMapper.loadAnnotations);
-      });
-    });
-
     context('when the app is the stream', function () {
       beforeEach(function () {
-        // Enable the `defer_realtime_updates` feature flag
-        fakeFeatures.flagEnabled.returns(true);
         fakeAnnotationUI.isSidebar.returns(false);
       });
 
@@ -237,11 +210,7 @@ describe('Streamer', function () {
       });
     });
 
-    context('when realtime updates are deferred', function () {
-      beforeEach(function () {
-        fakeFeatures.flagEnabled.returns(true);
-      });
-
+    context('when the app is the sidebar', function () {
       it('saves pending updates', function () {
         fakeWebSocket.notify(fixtures.createNotification);
         assert.equal(activeStreamer.countPendingUpdates(), 1);
@@ -303,7 +272,6 @@ describe('Streamer', function () {
     beforeEach(function () {
       createDefaultStreamer();
       activeStreamer.connect();
-      fakeFeatures.flagEnabled.returns(true);
     });
 
     it('applies pending updates', function () {
@@ -340,7 +308,6 @@ describe('Streamer', function () {
     beforeEach(function () {
       createDefaultStreamer();
       activeStreamer.connect();
-      fakeFeatures.flagEnabled.returns(true);
     });
 
     unroll('discards pending updates when #event occurs', function (testCase) {
@@ -364,7 +331,6 @@ describe('Streamer', function () {
     it('clears pending updates and deletions', function () {
       createDefaultStreamer();
       activeStreamer.connect();
-      fakeFeatures.flagEnabled.returns(true);
 
       fakeWebSocket.notify(fixtures.createNotification);
       fakeRootScope.$broadcast(events.GROUP_FOCUSED);