recommit bwindels commited changes to refactor check logic after rebase mistake

src/components/views/rooms/BasicMessageComposer.js

@@ -447,7 +447,7 @@ export default class BasicMessageEditor extends React.Component {
             } else if (event.key === Key.TAB) {
                 this._tabCompleteName();
                 handled = true;
-            } else if (event.key === Key.BACKSPACE || Key.DELETE) {
+            } else if (event.key === Key.BACKSPACE || event.key === Key.DELETE) {
                 this._formatBarRef.hide();
             }
         }