General react performance improvements (#2796)

* General React performance improvements

* Cleaned up unused props/state in PermaLinkView and PostFocusView

webapp/components/needs_team.jsx

@@ -42,20 +42,18 @@ export default class NeedsTeam extends React.Component {
         this.onChanged = this.onChanged.bind(this);
 
         this.state = {
-            profiles: UserStore.getProfiles(),
             team: TeamStore.getCurrent()
         };
     }
 
     onChanged() {
         this.setState({
-            profiles: UserStore.getProfiles(),
             team: TeamStore.getCurrent()
         });
     }
 
     componentWillMount() {
-        // Go to tutorial if we are first arrivign
+        // Go to tutorial if we are first arriving
         const tutorialStep = PreferenceStore.getInt(Preferences.TUTORIAL_STEP, UserStore.getCurrentId(), 999);
         if (tutorialStep <= TutorialSteps.INTRO_SCREENS) {
             browserHistory.push(Utils.getTeamURLNoOriginFromAddressBar() + '/tutorial');
@@ -63,7 +61,6 @@ export default class NeedsTeam extends React.Component {
     }
 
     componentDidMount() {
-        UserStore.addChangeListener(this.onChanged);
         TeamStore.addChangeListener(this.onChanged);
 
         // Emit view action
@@ -84,7 +81,6 @@ export default class NeedsTeam extends React.Component {
     }
 
     componentWillUnmount() {
-        UserStore.removeChangeListener(this.onChanged);
         TeamStore.removeChangeListener(this.onChanged);
         $(window).off('focus');
         $(window).off('blur');
@@ -114,7 +110,6 @@ export default class NeedsTeam extends React.Component {
                     <div className='row main'>
                         {React.cloneElement(this.props.center, {
                             user: this.props.user,
-                            profiles: this.state.profiles,
                             team: this.state.team
                         })}
                     </div>