Don't obscure system_server crashes

Location client usage within the system_server process that uses a
direct executor may obscure crashes. Any crash that happens on location
delivery will cause a secondary crash during cleanup within location
code, hiding the original error and causing false-positives around
wakelock cleanup. Ensure that that the original error is not hidden and
that cleanup functions properly.

Test: manual
Change-Id: If930b2d02d852ee04e6617b072f8e790f161734a