drm: don't export drm_get_drawable_info

Not used by any in-tree user. So drop it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/drm_drawable.c b/drivers/gpu/drm/drm_drawable.c
index c53c976..170e531 100644
--- a/drivers/gpu/drm/drm_drawable.c
+++ b/drivers/gpu/drm/drm_drawable.c
@@ -173,11 +173,10 @@
 /**
  * Caller must hold the drawable spinlock!
  */
-struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, drm_drawable_t id)
+static struct drm_drawable_info *drm_get_drawable_info(struct drm_device *dev, drm_drawable_t id)
 {
 	return idr_find(&dev->drw_idr, id);
 }
-EXPORT_SYMBOL(drm_get_drawable_info);
 
 static int drm_drawable_free(int idr, void *p, void *data)
 {