diff --git a/src/gallium/auxiliary/util/u_threaded_context.c b/src/gallium/auxiliary/util/u_threaded_context.c
index 0a7b61ec1d2..1640d659fae 100644
--- a/src/gallium/auxiliary/util/u_threaded_context.c
+++ b/src/gallium/auxiliary/util/u_threaded_context.c
@@ -463,14 +463,6 @@ tc_drop_resource_reference(struct pipe_resource *dst)
       pipe_resource_destroy(dst);
 }
 
-/* Unreference dst but don't touch the dst pointer. */
-static inline void
-tc_drop_surface_reference(struct pipe_surface *dst)
-{
-   if (pipe_reference(&dst->reference, NULL)) /* only decrement refcount */
-      dst->context->surface_destroy(dst->context, dst);
-}
-
 /* Unreference dst but don't touch the dst pointer. */
 static inline void
 tc_drop_so_target_reference(struct pipe_stream_output_target *dst)