drm: misc cleanup

This patch contains the following cleanups:
- make needlessly global functions static
- remove the following unused global functions:
 - drm_fops.c: drm_read
 - i915_dma.c: i915_do_cleanup_pageflip

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/r128_state.c b/drivers/char/drm/r128_state.c
index 53af691..426a71c 100644
--- a/drivers/char/drm/r128_state.c
+++ b/drivers/char/drm/r128_state.c
@@ -1307,7 +1307,7 @@
 	return 0;
 }
 
-int r128_do_cleanup_pageflip( drm_device_t *dev )
+static int r128_do_cleanup_pageflip( drm_device_t *dev )
 {
 	drm_r128_private_t *dev_priv = dev->dev_private;
 	DRM_DEBUG( "\n" );