Revert "Attempt to fix rare race/fail in async stress test"
Revert "Attempt to fix rare race/fail in async stress test"

This reverts commit 0b8793e495c426bab31a17c54667c1fffcd48ac8.

fernandovm/SQLite.Net-PCL,TiendaNube/SQLite.Net-PCL,caseydedore/SQLite.Net-PCL,igrali/SQLite.Net-PCL,molinch/SQLite.Net-PCL,igrali/SQLite.Net-PCL,kreuzhofer/SQLite.Net-PCL,oysteinkrog/SQLite.Net-PCL,mattleibow/SQLite.Net-PCL