[X86] Remove already upgraded llvm.x86.avx512.mask.padds/psubs tests

Duplicate tests have already been moved to avx512bw-intrinsics-upgrade.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349643 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed