Clearing up invalid entries when SyncStorageEngine starts

Fixing the original change which was reverted. Using the
available api Context.getSystemService(String) instead of
the unavailable Context.getSystemService(Class)

Test: cts-tradefed run cts -p android.content.syncmanager

Bug: 35028827

This reverts commit 4a9d358448ef150cae259e9c5b5ed1227a1d6d9c.

Change-Id: I725430401eaec861f45bb91ee1352bb1307a6915
1 file changed