Delete unused tests\arm64\fails.testlist (#17745)
Delete unused tests\arm64\fails.testlist (#17745)

* Reenable fixed arm64 tests

* delete the unused file

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