For PR1151:

Make llvm-upgrade valgrind clean. Deleting type instances is a really
nasty thing to do to LLVM. This was a hold-over from the re-write.
This fixes test/Assembler/2007-01-22-UpgradeTypeMapInvalidMemory.ll and
potentially many other bugs.

llvm-svn: 33858

llvm/tools/llvm-upgrade/UpgradeParser.y

@@ -1804,7 +1804,6 @@ UpRTypes
     for (std::list<llvm::PATypeInfo>::iterator I = $3->begin(),
            E = $3->end(); I != E; ++I) {
       Params.push_back(I->T->get());
-      delete I->T;
     }
     FunctionType::ParamAttrsList ParamAttrs;
     if (CurFun.LastCC == OldCallingConv::CSRet) {