Google this week reportedly pulled one mobile ad blocker from the Google Play store and prevented another from being updated. The moves come on the heels of Samsung’s announcement this week that it was opening up its mobile Web browser to ad blockers. AdBlock Fast, which was one of the first blockers to take advantage of Samsung’s largesse, was tossed from Google Play. Google reportedly cited Section 4.4 of the Android Developer Distribution Agreement as the reason for sacking the app.