eliminate the ability to remove global nodes from deadNodeElminate... for now.

This slows stuff down a bit, but it should get much better before it gets any
worse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4666 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/DataStructure/Local.cpp

@@ -134,7 +134,7 @@ DSGraph::DSGraph(Function &F, DSGraph *GG) : Func(&F), GlobalsGraph(GG) {
   markIncompleteNodes();
 
   // Remove any nodes made dead due to merging...
-  removeDeadNodes(true);
+  removeDeadNodes();
 }