Per consensus establisehd at http://www.wikidata.org/wiki/Wikidata_talk:Bureaucrats#Proposal_2_-_bureaucrats_have_technical_ability_to_remove_translationadmin, wgRemoveGroups should have an entry like the following:
'wikidatawiki'=>

array(
'bureaucrat'=>array('translationadmin','bot'),
),

Version: wmf-deployment
Severity: enhancement