A new report claims the recent removal of AppGratis from the App Store was just the beginning, as the ouster of AppGratis was “a first step in a broader enforcement action,” mainly targeted at similar discovery apps found to violate clauses 2.25 and 5.6 of Apple’s App Store review guidelines. Apple feels such apps “threaten the legitimacy of the App Store charts” by letting developers spend money to increase their ranking.…