Update deletion conditions for a package's UsageStats.

If a profile owner is defined for a specific user, do not delete usage
stats for a package on package deletion.

Bug: 197399948
Test: atest UserUsageStatsServiceTest
Test: atest UsageStatsTest [all]
Change-Id: I94a8e3dfca8ef4c7616f77944d61726e06043b85
Merged-In: I94a8e3dfca8ef4c7616f77944d61726e06043b85
(cherry picked from commit 157fbcfbe4b38075391aef5b4977d45702a06936)
Merged-In:I94a8e3dfca8ef4c7616f77944d61726e06043b85
5 files changed