Do not use log hints for exceptions
Do not use log hints for exceptions

A log hint should not be used for an exception.

Please see http://docs.openstack.org/developer/oslo.i18n/guidelines.html

Change-Id: I122455fd767c21e26c34e23b8b7d45b845f15e99

openstack/neutron,openstack/neutron,chitr/neutron,chitr/neutron,jumpojoy/neutron,dims/neutron,apporc/neutron,dims/neutron,jumpojoy/neutron,eayunstack/neutron,mahak/neutron,noironetworks/neutron,igor-toga/local-snat,cloudbase/neutron,apporc/neutron,klmitch/neutron,noironetworks/neutron,mahak/neutron,igor-toga/local-snat,klmitch/neutron,mahak/neutron,huntxu/neutron,MaximNevrov/neutron,bigswitch/neutron,sebrandon1/neutron,wolverineav/neutron,huntxu/neutron,MaximNevrov/neutron,bigswitch/neutron,cloudbase/neutron,sebrandon1/neutron,eayunstack/neutron,openstack/neutron,wolverineav/neutron