[CodeGen] Don't mark FMINNUM/FMAXNUM Expand twice. NFC.

They're already in the all_valuetypes() loop above.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@271316 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed