Remove test_MC16_G4FastCalo_ttbar test since its a duplicated of AF3 test (ATLASSIM-5045)

Ahmed Hasibrequested to merge
ahasib-21.0-patch-69866 into 21.0

Update ART tests for AtlFast3 related tests.

fyi @jchapman @tcuhadar

Edited by Ahmed Hasib

Merge request reports