Delete app profiles only during updates and uninstalls

Apps code doesn't change across OTAs so keeping profiles alive will help
have a base for OTA time optimizations (e.g. verify based on profiles to
speed up app startup).

Split claring and destroying the profiles in two different methods,
consistent to how application data is cleared/destroyed.

Bug: 27081617
Bug: 27688727
Change-Id: Ie375499075be990f4f046c8cc2029d80321d5eb5