r600g: Removed unused 'ptr' argument from radeon_bo().

Signed-off-by: Tilman Sauerbeck <tilman@code-monkey.de>
diff --git a/src/gallium/winsys/r600/drm/r600_priv.h b/src/gallium/winsys/r600/drm/r600_priv.h
index b5bd7bd..117d059 100644
--- a/src/gallium/winsys/r600/drm/r600_priv.h
+++ b/src/gallium/winsys/r600/drm/r600_priv.h
@@ -90,7 +90,7 @@
 
 /* radeon_bo.c */
 struct radeon_bo *radeon_bo(struct radeon *radeon, unsigned handle,
-			    unsigned size, unsigned alignment, void *ptr);
+			    unsigned size, unsigned alignment);
 void radeon_bo_reference(struct radeon *radeon, struct radeon_bo **dst,
 			 struct radeon_bo *src);
 int radeon_bo_wait(struct radeon *radeon, struct radeon_bo *bo);