permissions was updated to version 20200127:

* base this fork on a SLE-15-SP3 branch instead of on the Factory branch.
The Factory branch contains too many unknowns for the far-off Leap 15.3
codebase.

* add a couple of cleanup changes that we can on Leap 15.3:

- etc/permissions: remove unnecessary static dirs and devices
- etc/permissions: remove legacy RPM directory entries
- etc/permissions: remove outdated sudo directories