DO NOT MERGE Remove policy transparency test for DISALLOW_ADD_USER

This test is confusing since "Add user" is not disabled but removed
from the screen completely in Android P. This has been fixed in later
versions, so this change shouldn't be merged into newer versions.

Bug: 124344743
Test: manual
Change-Id: I060d3bc6cda52b05376f1ebb25db8bd243f8a965
2 files changed