r600g: remove unused r600_bo::kernel_pitch

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/src/gallium/winsys/r600/drm/r600_priv.h b/src/gallium/winsys/r600/drm/r600_priv.h
index 8296aa1..50783a6 100644
--- a/src/gallium/winsys/r600/drm/r600_priv.h
+++ b/src/gallium/winsys/r600/drm/r600_priv.h
@@ -96,7 +96,6 @@
 	/* DO NOT MOVE THIS ^ */
 	unsigned			size;
 	unsigned			tiling_flags;
-	unsigned			kernel_pitch;
 	unsigned			domains;
 	struct radeon_bo		*bo;
 	unsigned			fence;
@@ -140,8 +139,7 @@
 int radeon_bo_fencelist(struct radeon *radeon, struct radeon_bo **bolist, uint32_t num_bo);
 int radeon_bo_get_tiling_flags(struct radeon *radeon,
 			       struct radeon_bo *bo,
-			       uint32_t *tiling_flags,
-			       uint32_t *pitch);
+			       uint32_t *tiling_flags);
 int radeon_bo_get_name(struct radeon *radeon,
 		       struct radeon_bo *bo,
 		       uint32_t *name);