Remove print operators
Remove print operators

Honestly, these are trivial to add when needed for debugging and don't
need to be here.

calebd/ReactiveCocoa,RACCommunity/Rex,ohwutup/ReactiveCocoa,RACCommunity/Rex,walkingsmarts/ReactiveCocoa,ikesyo/Rex,bjarkehs/Rex,walkingsmarts/ReactiveCocoa,skyylex/Rex,calebd/ReactiveCocoa,bjarkehs/Rex,ohwutup/ReactiveCocoa,RACCommunity/Rex,ikesyo/Rex,walkingsmarts/ReactiveCocoa,calebd/ReactiveCocoa,neilpa/Rex,ohwutup/ReactiveCocoa,neilpa/Rex,avalanched/Rex