Fix policy transparency is missing in remove work profile button

The policy transparency code is not triggered as the button is disabled.

BUG: 64570769
Test: 1. Remove work profile without restriction.
Test: 2. Remove work profile with restriction. Observed a dialog explains
why it is disabled.
Test: 3. Verify setting new admin, uninstall and deactivate button are 
         working
 

Change-Id: I1fc9c996785c67daf41a5d31e732d9d82eb56b17