[client] revert cusror update render trigger

While it makes the mouse a bit nicer it causes frame skips during cursor
movement.

VERSION

@@ -1 +1 @@
-B2-rc1-3-g4580b18b04+1
+B2-rc1-4-gdedab38b99+1

client/src/main.c

@@ -328,8 +328,6 @@ static int cursorThread(void * unused)
       state.cursor.x,
       state.cursor.y
     );
-
-    lgSignalEvent(e_frame);
   }
 
   lgmpClientUnsubscribe(&queue);