Revert the last patch. We really do need SimplyCFG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18787 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-ld/Optimize.cpp

@@ -163,6 +163,9 @@ void Optimize(Module* M) {
     // Cleanup and simplify the code after the scalar optimizations.
     addPass(Passes, createInstructionCombiningPass());
 
+    // Delete basic blocks, which optimization passes may have killed...
+    addPass(Passes, createCFGSimplificationPass());
+
     // Now that we have optimized the program, discard unreachable functions...
     addPass(Passes, createGlobalDCEPass());
   }