Revert "Introduce AttributionAndPermissionUtils."

This reverts commit 17e3ebe8.

Reason for revert: Local testing + debugging
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f075f08d80497aafc2b3ee1c4358f5e8559b5c99)
Merged-In: I2e8a8cd456d1fb7f8d12072f6f0aaa12e6dc6e6c
Change-Id: I2e8a8cd456d1fb7f8d12072f6f0aaa12e6dc6e6c