remove the LowerSelect pass. The last client was the old Sparc backend, which is long dead by now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47323 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Utils/Mem2Reg.cpp

@@ -43,7 +43,6 @@ namespace {
       AU.setPreservesCFG();
       // This is a cluster of orthogonal Transforms
       AU.addPreserved<UnifyFunctionExitNodes>();
-      AU.addPreservedID(LowerSelectID);
       AU.addPreservedID(LowerSwitchID);
       AU.addPreservedID(LowerInvokePassID);
       AU.addPreservedID(LowerAllocationsID);