misc cleanup

src/components/views/rooms/Stickerpicker.js

@@ -37,7 +37,6 @@ const STICKERPICKER_Z_INDEX = 3500;
 const PERSISTED_ELEMENT_KEY = "stickerPicker";
 
 export default class Stickerpicker extends React.Component {
-
     static currentWidget;
 
     constructor(props) {

src/stores/ActiveWidgetStore.js

@@ -23,7 +23,6 @@ import MatrixClientPeg from '../MatrixClientPeg';
  *  * What widget is set to remain always-on-screen, if any
  *    Only one widget may be 'always on screen' at any one time.
  *  * Negotiated capabilities for active apps
- *  * Which stickerpicker the app is using, if any
  */
 class ActiveWidgetStore extends EventEmitter {
     constructor() {