Don't hold mPackages when clearing package state

This change stops locking on mPackages when making calls to
clearPackageForUserLIF to avoid the potential for lock contention and
address error logs emitted by installd.

Test: atest AppSecurityTests
Fixes: 122530620
Change-Id: If3372fc38140ede0c05e49dfafd761d56790df44
1 file changed