You can not opt out. You can only vote to reduce the rate of payment.

I wasn't going to reply at all but since I replied to correct this point I'll add that I don't think the 1% deferred premine is a big deal. The mechanics of the system could have been disclosed better but as these things go in crypto it is a relatively insignificant issue. Everyone was well aware of a 1% developer reward even if the exact details were clear only in the code.