Remove non-passing queryForNull tests
Remove non-passing queryForNull tests

Since WHERE x=NULL is invalid (it should be x IS NULL), but that's kind of pointless to put in a prepared statement.

Change-Id: I44014a70b25da658abc1c7fc8343348c47fb17fc
Reviewed-on: https://gerrit.dechocorp.com/4261
Reviewed-by: Brian Palmer <760e7dab2836853c63805033e514668301fa9c47@mozy.com>

cgaebel/mordor,mozy/mordor,adfin/mordor,mozy/mordor,ccutrer/mordor,mozy/mordor,adfin/mordor,adfin/mordor,mtanski/mordor,cgaebel/mordor,ccutrer/mordor,ccutrer/mordor,mtanski/mordor,mtanski/mordor