Prevent layout trashing when resizing the window

src/utils/ResizeNotifier.js

@@ -74,12 +74,6 @@ export default class ResizeNotifier extends EventEmitter {
 
     // can be called in quick succession
     notifyWindowResized() {
-        // no need to throttle this one,
-        // also it could make scrollbars appear for
-        // a split second when the room list manual layout is now
-        // taller than the available space
-        this.emit("leftPanelResized");
-
         this._updateMiddlePanel();
     }
 }