To match the return type documentation of IReadableDatabase::select
Also fix a default value for IReadableDatabase::selectRowCount
Change-Id: I510bd261b64b5c2cef227c081a2fe34801f54121
UpdateQueryBuilder does not return a value,
removed the return value from the functions as well,
deprecated since 1.33
Change-Id: I3b934a5e6d5a53c07ec5233da00d9f53ba7bae92