8034812 broke build with clang

Need a the following little bit of cleanup:
diff --git a/src/share/vm/opto/node.cpp b/src/share/vm/opto/node.cpp
--- a/src/share/vm/opto/node.cpp
+++ b/src/share/vm/opto/node.cpp
@@ -456,10 +456,6 @@
   _in[6] = n6; if (n6 != NULL) n6->add_out((Node *)this);
 }

-#ifdef __clang__
-#pragma clang diagnostic pop
-#endif
-

 //------------------------------clone------------------------------------------
 // Clone a Node.