Android Agent 7.1.2
If the Agent has been updated from a previous version, third-party app installs are blocked after removing an Application Control profile. The Agent should allow the app install, since the profile is already removed.
Reapplying the App Control profile will resolve the issue. You can do so by either clicking the reapply button in the Agent or by pushing a newer version of the App Control profile from the AirWatch Console.
This has been resolved in Android Agent 7.2.