Fix signature for remove group
Fix signature for remove group

pulilab/rapidpro,tsotetsi/textily-web,tsotetsi/textily-web,tsotetsi/textily-web,tsotetsi/textily-web,pulilab/rapidpro,pulilab/rapidpro,pulilab/rapidpro,tsotetsi/textily-web,pulilab/rapidpro