Bug 11182: remove spurious logged warnings in circulation

Bug 11182: remove spurious logged warnings in circulation

TEST PLAN
---------
 1) Log into staff client
 2) Click 'Circulation'
 3) Click 'Check out'
 4a) Type a patron name, click 'Submit'
 4b) If necessary, select which one, and click 'Select'
 5) Check the error logs, new warnings
 6) Apply patch
 7) Click 'Circulation'
 8) Click 'Check out'
 9a) Type a patron name, click 'Submit'
 9b) If necessary, select which one, and click 'Select'
10) Check the error logs, no new warnings
11) Click the 'Restrictions' tab
12) Click 'Add manual restriction'
13) Add a dummy restriction
14) Click the 'Restrictions' tab
15) Click 'Remove'
16) Click 'OK'
17) Confirm that no additional error log entries were added
     and adding/deleting restrictions hasn't broken.

Signed-off-by: Jesse Weaver <pianohacker@gmail.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>