Disable long-press room help

Users reported this message to be more confusing than helpful
(might be related to german translation)

vector/src/main/java/im/vector/riotx/features/home/room/list/RoomSummaryController.kt

@@ -102,7 +102,7 @@ class RoomSummaryController @Inject constructor(private val stringProvider: Stri
             }
         }
 
-        if (showHelp) {
+        if (showHelp && false) {
             buildLongClickHelp()
         }
     }