drm/gma500: Remove unused function psb_gem_get_aperture()

Apparently, the function was never used at all.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201106124224.21201-1-tzimmermann@suse.de

drivers/gpu/drm/gma500/gem.c

@@ -32,12 +32,6 @@ static void psb_gem_free_object(struct drm_gem_object *obj)
 	psb_gtt_free_range(obj->dev, gtt);
 }
 
-int psb_gem_get_aperture(struct drm_device *dev, void *data,
-				struct drm_file *file)
-{
-	return -EINVAL;
-}
-
 static const struct vm_operations_struct psb_gem_vm_ops = {
 	.fault = psb_gem_fault,
 	.open = drm_gem_vm_open,

drivers/gpu/drm/gma500/psb_drv.h

@@ -735,8 +735,6 @@ extern const struct drm_connector_helper_funcs
 extern const struct drm_connector_funcs psb_intel_lvds_connector_funcs;
 
 /* gem.c */
-extern int psb_gem_get_aperture(struct drm_device *dev, void *data,
-			struct drm_file *file);
 extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 			struct drm_mode_create_dumb *args);