the best thing to do is not to be rid of it, but to hide it entirely from the interfaces. I like the idea of a persistent tracking stat that others judge you by accordingly, but that doesn't mean I want to have it flashed in my face every time it changes. This is the most realistic way of doing it, people will act according to how they interpret your character, but you don't get to game the system and save/reload for best results, you just gotta go with your gut and hope it works for you and if not then better luck next time. Just like talking to people in real life.
i get the system, I really do, and I know it was based on Biowares previous games with a lawful-chaotic, good -evil alignment chart, but that chart made a certain weird kind of sense, because it was a fantasy world in which many, many of the character personalities were defined by. There is absolutely nobody in mass effect who categorizes themselves into factions of renegade, paragon, paragade or any of that, so the entire system comes across as a load of tacked on BS, it just does not work like it does in D&D because unlike D&D Mass Effect doesn't do anything with it.