Removes unnecessary style rule

Removes the `vjs-shortcuts-actions` style rule as it's no longer needed, simplifying the stylesheet and potentially improving performance.

Author: tzarebczan

ui/component/viewers/videoViewer/internal/keyboard-shortcuts-overlay.scss

@@ -158,6 +158,3 @@
     }
   }
 }
-.vjs-shortcuts-actions {
-  justify-self: end;
-}