Revert "NXCals: work around issue caused by .sys.. files appearing on EOS"

To run the testing, add a comment with:

Bot test PACKAGE[ PACKAGE2 ...]|all in TOOLCHAIN|all [(only|also) for ARCH-LABEL-COMPILER-BUILDTYPE] please!

later followed by

Bot repeat please!

To ensure patches required for existing LCG branches are not lost, please add the respective labels: alsoTargeting:LCG_102-patches, alsoTargeting:master, etc.

added test-needed label

enabled an automatic merge when all merge checks for c174b4c3 pass

merged

mentioned in commit e0cfc82a

added sweep:ignore label