If you thought SpaceX going public would open Elon Musk to potential ouster by shareholders, think again. According to an excerpt of its IPO filing reviewed by Reuters , prospective investors who want to get in on the impending SpaceX initial public offering have been informed that Musk cannot be removed from his roles as CEO and chairman without his consent. Sure would be nice if the rest of us had that clause, huh? Musk’s king status at the head of the company is the result of some finagling within SpaceX’s filings. Per Reuters, the company’s documents state that Musk “can only be removed from our board or these positions by the vote of Class B holders.” Those are shares that have ten votes apiece, and they’re reportedly currently controlled by Musk.…