If you had to eliminate one main character from your favourite series, who would it be and why?

For this purpose I am not accepting Wesley Crusher as a main character, because that is a cop out and would be every answer. Also not accepting one season characters.

For me it would be Troi in TNG, I cannot remember one memorable line she had in the entirety of TNG, four movies and ST Picard. Nothing against her, just her character does not do very much except wear non-uniform clothing and be Riker then Worf then Riker's girlfriend and Riker's wife.