i965: Silence unused variable warning.
diff --git a/src/mesa/drivers/dri/i965/intel_buffer_objects.c b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
index b4eb076..a7242b0 100644
--- a/src/mesa/drivers/dri/i965/intel_buffer_objects.c
+++ b/src/mesa/drivers/dri/i965/intel_buffer_objects.c
@@ -476,9 +476,8 @@
 {
    struct brw_context *brw = brw_context(ctx);
    struct intel_buffer_object *intel_obj = intel_buffer_object(obj);
-   GLbitfield access = obj->Mappings[index].AccessFlags;
 
-   assert(access & GL_MAP_FLUSH_EXPLICIT_BIT);
+   assert(obj->Mappings[index].AccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT);
 
    /* If we gave a direct mapping of the buffer instead of using a temporary,
     * then there's nothing to do.