drm: kill drm_agp_chipset_flush

No longer used.

Cc: Dave Airlie <[e-mail]>
Signed-off-by: Daniel Vetter <[e-mail]>
Signed-off-by: Chris Wilson <[e-mail]>

drivers/gpu/drm/drm_agpsupport.c

···
 }
 EXPORT_SYMBOL(drm_agp_bind_pages);
 
-void drm_agp_chipset_flush(struct drm_device *dev)
-{
-	agp_flush_chipset(dev->agp->bridge);
-}
-EXPORT_SYMBOL(drm_agp_chipset_flush);
-
 #endif /* __OS_HAS_AGP */

include/drm/drmP.h

···
 extern int drm_agp_bind(struct drm_device *dev, struct drm_agp_binding *request);
 extern int drm_agp_bind_ioctl(struct drm_device *dev, void *data,
 			struct drm_file *file_priv);
-extern void drm_agp_chipset_flush(struct drm_device *dev);
 
 				/* Stub support (drm_stub.h) */
 extern int drm_setmaster_ioctl(struct drm_device *dev, void *data,