macosx: avoid some focus problems when doing playlistish stuff

The original purpose for this code is fixed somewhere else today.

close #6769
(cherry picked from commit 0f0d4751)
Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

modules/gui/macosx/MainWindow.m

@@ -1359,9 +1359,6 @@ static VLCMainWindow *_o_sharedInstance = nil;
         /* chapters & titles */
         //FIXME! b_chapters = p_input->stream.i_area_nb > 1;
 
-        if (( cachedInputState == PLAYING_S || b_buffering == YES ) && [[VLCMain sharedInstance] activeVideoPlayback] )
-            [[o_video_view window] makeKeyAndOrderFront: nil];
-
         vlc_object_release( p_input );
     }