Don't the actors get paid a nominal (in their world) sum up front and make most their money on the box office and residuals? Cut him out of the film and there is not tail end to pay to him.
He's required to be paid for the work he did whether or not it's used in the finished film. Regarding residuals, that depends completely on the contract. It's possible he's entitled to residuals even if he's cut from the film. OTOH, if there are "morals" or similar clauses the producers could have an out to crawl through.
John