Neutron should not use the neutronclient utils module for import_class
Neutron should not use the neutronclient utils module for import_class

Fixes code to use openstack.common.importutils instead.

Change-Id: Ia449f8b1d7d03f37483cfdc595ad77e71ea6598c
Closes-bug: 1366917

mattt416/neutron,mahak/neutron,javaos74/neutron,wenhuizhang/neutron,miyakz1192/neutron,waltBB/neutron_read,jacknjzhou/neutron,silenci/neutron,mattt416/neutron,openstack/neutron,suneeth51/neutron,shahbazn/neutron,gkotton/neutron,mahak/neutron,klmitch/neutron,antonioUnina/neutron,mmnelemane/neutron,Stavitsky/neutron,CiscoSystems/neutron,jerryz1982/neutron,dhanunjaya/neutron,adelina-t/neutron,cloudbase/neutron-virtualbox,watonyweng/neutron,takeshineshiro/neutron,takeshineshiro/neutron,eonpatapon/neutron,asgard-lab/neutron,aristanetworks/neutron,eayunstack/neutron,openstack/neutron,rdo-management/neutron,SmartInfrastructures/neutron,sasukeh/neutron,vivekanand1101/neutron,vveerava/Openstack,SamYaple/neutron,yanheven/neutron,barnsnake351/neutron,jumpojoy/neutron,SamYaple/neutron,cloudbase/neutron,Metaswitch/calico-neutron,mahak/neutron,leeseulstack/openstack,magic0704/neutron,miyakz1192/neutron,redhat-openstack/neutron,paninetworks/neutron,CiscoSystems/neutron,MaximNevrov/neutron,sebrandon1/neutron,projectcalico/calico-neutron,redhat-openstack/neutron,cloudbase/neutron-virtualbox,noironetworks/neutron,javaos74/neutron,dhanunjaya/neutron,JioCloud/neutron,antonioUnina/neutron,magic0704/neutron,swdream/neutron,cernops/neutron,infobloxopen/neutron,JioCloud/neutron,klmitch/neutron,wolverineav/neutron,huntxu/neutron,asgard-lab/neutron,vivekanand1101/neutron,suneeth51/neutron,yuewko/neutron,igor-toga/local-snat,shahbazn/neutron,neoareslinux/neutron,glove747/liberty-neutron,bgxavier/neutron,huntxu/neutron,infobloxopen/neutron,bgxavier/neutron,aristanetworks/neutron,vveerava/Openstack,Metaswitch/calico-neutron,wenhuizhang/neutron,dims/neutron,bigswitch/neutron,noironetworks/neutron,glove747/liberty-neutron,yanheven/neutron,cernops/neutron,apporc/neutron,sebrandon1/neutron,chitr/neutron,swdream/neutron,skyddv/neutron,pnavarro/neutron,alexandrucoman/vbox-neutron-agent,neoareslinux/neutron,openstack/neutron,rdo-management/neutron,silenci/neutron,vveerava/Openstack,blueboxgroup/neutron,eayunstack/neutron,leeseuljeong/leeseulstack_neutron,sasukeh/neutron,barnsnake351/neutron,NeCTAR-RC/neutron,JianyuWang/neutron,mandeepdhami/neutron,bigswitch/neutron,apporc/neutron,jumpojoy/neutron,gkotton/neutron,projectcalico/calico-neutron,cisco-openstack/neutron,eonpatapon/neutron,alexandrucoman/vbox-neutron-agent,blueboxgroup/neutron,wolverineav/neutron,igor-toga/local-snat,cisco-openstack/neutron,pnavarro/neutron,waltBB/neutron_read,adelina-t/neutron,jacknjzhou/neutron,blueboxgroup/neutron,NeCTAR-RC/neutron,JianyuWang/neutron,jerryz1982/neutron,leeseulstack/openstack,leeseulstack/openstack,gkotton/neutron,SmartInfrastructures/neutron,Stavitsky/neutron,dims/neutron,leeseuljeong/leeseulstack_neutron,MaximNevrov/neutron,leeseuljeong/leeseulstack_neutron,yuewko/neutron,cloudbase/neutron,mandeepdhami/neutron,skyddv/neutron,watonyweng/neutron,mmnelemane/neutron,paninetworks/neutron,chitr/neutron,CiscoSystems/neutron