Store trusted AttributionSources without token

Storing them with token means that there is a strong reference to the
token, preventing the WeakHashMap from properly purging values

Bug: 298253183
Test: manual (for WeakHashMap ejection)
      atest CtsAttributionSourceTestCases
Change-Id: Ie92b76ec83552cebb419318c214057f1ea8455d2
2 files changed