Cleaning up keywords not accepted in rel23.6 [skip modfiles]

Description of bug

bbll, bbtautau, bbZZ and bbWW keywords not recognised in rel 23.6.24, being used for HH>bbll trigger studies.

Changes introduced

The above-mentioned keywords were removed.

Tests

Validation plots:

https://docs.google.com/presentation/d/1ykNIu1PBfyXuYKELGWFvhFCzDjfdZTtTjP4igu7g1oY/edit#slide=id.g2bb3d6bb213_0_0

JOs and log generate files:

https://cernbox.cern.ch/files/link/public/Nhd92AuYl2iLSnb?tiles-size=1&items-per-page=100&view-mode=resource-table

Issues resolved

Closes #