fcl-db: tests: test that RowsAffected is specific per query not per connection (if more queries are executed over same connection)

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25377 3ad0048d-3df7-0310-abae-a5850022a9f2
* Remove redundant if

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25378 3ad0048d-3df7-0310-abae-a5850022a9f2