Dispose call when closing

src/app/organisms/room/JitsiRoom.jsx

@@ -146,9 +146,8 @@ function JitsiRoom(props) {
         />
       </div>
     );
-  } else {
-    return <div className="hiddenJitsiCall" />;
   }
+  return null;
 }
 
 export default JitsiRoom;

src/app/organisms/room/Room.scss

@@ -17,7 +17,3 @@
     display: none;
   }
 }
-
-.hiddenJitsiCall {
-  display:none !important;
-}