Move previously added test case to the right location

In rL272580 I accidentally added a test case to test/CodeGen when
test/Transforms/DeadStoreElimination/ is a better place for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@272581 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed