Revert "mdpi drawables for Navigation Bar Quick Launch Shortcuts"

This reverts commit 30f3cb643f96ab1736a5eec592910eb48a1fbf3f.
Revert "Framework: Show the Advanced reboot menu only for the primary user"

This reverts commit a8473623a1267e28bac420297f40d19ec37157d5.
Revert "Fix reboot window texts"

This reverts commit dbc6907710b9eb67f1af8b002b2994f19bce6c9b.
Revert "Framework: Add Advanced reboot (2 of 2)"

This reverts commit d7f955795a17b36aa0e532360482798dc5dbf772.