Remove unused variable

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@210041 91177308-0d34-0410-b5e6-96231b3b80d8
[CodeGen] Don't use SizeTy for EmitNeonSplat.

git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@210042 91177308-0d34-0410-b5e6-96231b3b80d8