Revert "android-studio-preview: 3.0.0.10 -> 3.0.0.11"

This reverts the upgrade to Android Studio 3.0 Beta 3 from commit
22ae3aa5 due to an upstream decision.

From the release updates: "Due to an issues with the Android Plugin for
Gradle in Beta 3 (64527520), we've pulled it down and recommend that you
not accept the update. If you already did, you can go back to Beta 2 by
downloading here." [0]

[0]: https://androidstudio.googleblog.com/2017/08/android-studio-30-beta-3-is-now.html