Remove incorrect UNIX_AMD64_ABI define
Remove incorrect UNIX_AMD64_ABI define

krk/coreclr,poizan42/coreclr,cshung/coreclr,mmitche/coreclr,wtgodbe/coreclr,krk/coreclr,wtgodbe/coreclr,mmitche/coreclr,wtgodbe/coreclr,mmitche/coreclr,mmitche/coreclr,wtgodbe/coreclr,poizan42/coreclr,krk/coreclr,krk/coreclr,poizan42/coreclr,poizan42/coreclr,cshung/coreclr,poizan42/coreclr,cshung/coreclr,krk/coreclr,wtgodbe/coreclr,wtgodbe/coreclr,mmitche/coreclr,cshung/coreclr,mmitche/coreclr,cshung/coreclr,cshung/coreclr,poizan42/coreclr,krk/coreclr