Revert "Update the AGP version to 3.3.1"
Revert "Update the AGP version to 3.3.1"

This reverts commit cbe19e6a3ef6d43d68491ae6b2449d635c4dd1ea.

There was a regression that data binding in session detail didn't work.

Bug: 125356139
Change-Id: If8d3d9e5572527bb2c3d4aff63d6579bbcf312d4

google/iosched,google/iosched,google/iosched