Google has put a new option on their Pricing and Distribution page of their Google Play Developer Console that requires publishers to declare if they have ads or not. Our ap
You can run gradlew -q dependencies app:dependencies to see a the dependencies (including all transitive dependencies) for each of your configurations.
You can also specify a single configuration, such as with --configuration releaseCompile
In your case, you will find that Google Play Services includes a transitive dependency on AdMob.
You can mitigate this by using only individual components of Play Services (such as play-services-location) instead of the entirety of Play Services. However, you may find that one of the individual components you use still relies on AdMob. For example, version 8.1.0 of play-services-analytics has a transitive dependency on play-services-ads, which is the AdMob SDK.