Clear USB device defaults when user is removed

If a user is removed it is either the parent user of the profile or a
child user. If the parent is removed the whole profile group settings
are removed, but if only a child user is removed we have to remove the
user settings from the groups settings.

Test: Registered a USB device default for a child and parent user and
removed them. Checked dumpsys usb before and after
Fixes: 31995672

Change-Id: I984cd294dc01437b042687684c058eb79332f520