Manual sweep of !22495 from 21.0 to 21.9: Removing MadGraphModels package from 21.0
Removing MadGraphModels package from 21.0
See merge request !22495 (merged)
(Sweeping this separately as the merge of 21.3.14 (which includes these changes) into 21.9 seems to be having problems.)
Edited by John Derek Chapman