Remove c-11 memcpy checks from perf-critical code

Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1
Signed-off-by: Dave Barach <dave@barachs.net>
diff --git a/src/vlib/node_funcs.h b/src/vlib/node_funcs.h
index 13614aa..777746a 100644
--- a/src/vlib/node_funcs.h
+++ b/src/vlib/node_funcs.h
@@ -135,7 +135,8 @@
 	  STRUCT_OFFSET_OF (vlib_node_runtime_t, runtime_data));
 
   if (vec_len (n->runtime_data) > 0)
-    clib_memcpy (r->runtime_data, n->runtime_data, vec_len (n->runtime_data));
+    clib_memcpy_fast (r->runtime_data, n->runtime_data,
+		      vec_len (n->runtime_data));
 }
 
 /** \brief Set node dispatch state.