macosx: remove unneeded headers from videoview.m

(cherry picked from commit deb8ae92650b4b112fada9b4c7b8ba3c71ed74d7)
Signed-off-by: David Fuhrmann <david.fuhrmann@googlemail.com>

modules/gui/macosx/VideoView.m

@@ -35,13 +35,10 @@
 #import "VideoView.h"
 #import "CoreInteraction.h"
 #import "MainMenu.h"
-#import "MainWindow.h"
 
 #import <vlc_common.h>
-#import <vlc_vout_window.h>
-#import <vlc_vout_display.h>
 #import <vlc_keys.h>
-#import <vlc_mouse.h>
+
 /*****************************************************************************
  * DeviceCallback: Callback triggered when the video-device variable is changed
  *****************************************************************************/