Revert "Require permission to create trusted displays"

This reverts commit f21c885ca7e86f77c808ab17fe1de650474de487.

Reason for revert: Have regression b/168268396.
Needs to pull out from Nov. builds.

Bug: 162627132

Change-Id: I29fa3937d1655a0cc7591abcfa2067f4fb2b2bcb
(cherry picked from commit ac67bee2165e7762f969258d1c39445229d1068d)
6 files changed