gpu: Clean up headers

After the device/cache split, this was forgotten.

gsk/gpu/gskgpudevice.c

@@ -3,16 +3,10 @@
 #include "gskgpudeviceprivate.h"
 
 #include "gskgpucacheprivate.h"
-#include "gskgpuframeprivate.h"
-#include "gskgpuimageprivate.h"
-#include "gskgpuuploadopprivate.h"
 
-#include "gdk/gdkdisplayprivate.h"
-#include "gdk/gdktextureprivate.h"
 #include "gdk/gdkprofilerprivate.h"
 
 #include "gsk/gskdebugprivate.h"
-#include "gsk/gskprivate.h"
 
 #define CACHE_TIMEOUT 15  /* seconds */
 

gsk/gpu/gskgpudeviceprivate.h

@@ -2,8 +2,6 @@
 
 #include "gskgputypesprivate.h"
 
-#include <graphene.h>
-
 G_BEGIN_DECLS
 
 #define GSK_GPU_DEVICE_DEFAULT_TILE_SIZE 1024