This is needed to ensure corrupted data can be clean up if
the data migration process dones't go well.
Test: NetworkStatsCollectionTest
Bug: 197717846
Change-Id: Ic76ad6f3e96f03791b48988fb2622c9c647ffc7c
(cherry picked from commit 306a00316c)
Merged-In: Ic76ad6f3e96f03791b48988fb2622c9c647ffc7c