Remove references to "v6" interface-route-table-family in test code.
Remove references to "v6" interface-route-table-family in test code.

Change-Id: Ibe692c8ec16a4896a4f16076fb1489e90be24c5f

vmahuli/contrail-controller,srajag/contrail-controller,nischalsheth/contrail-controller,reiaaoyama/contrail-controller,DreamLab/contrail-controller,sajuptpm/contrail-controller,hthompson6/contrail-controller,cloudwatt/contrail-controller,eonpatapon/contrail-controller,sajuptpm/contrail-controller,srajag/contrail-controller,DreamLab/contrail-controller,srajag/contrail-controller,vmahuli/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,facetothefate/contrail-controller,DreamLab/contrail-controller,tcpcloud/contrail-controller,hthompson6/contrail-controller,cloudwatt/contrail-controller,hthompson6/contrail-controller,numansiddique/contrail-controller,facetothefate/contrail-controller,srajag/contrail-controller,facetothefate/contrail-controller,codilime/contrail-controller,hthompson6/contrail-controller,codilime/contrail-controller,reiaaoyama/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,rombie/contrail-controller,codilime/contrail-controller,vpramo/contrail-controller,numansiddique/contrail-controller,tcpcloud/contrail-controller,tcpcloud/contrail-controller,eonpatapon/contrail-controller,cloudwatt/contrail-controller,nischalsheth/contrail-controller,numansiddique/contrail-controller,reiaaoyama/contrail-controller,vpramo/contrail-controller,reiaaoyama/contrail-controller,numansiddique/contrail-controller,rombie/contrail-controller,reiaaoyama/contrail-controller,sajuptpm/contrail-controller,cloudwatt/contrail-controller,codilime/contrail-controller,eonpatapon/contrail-controller,codilime/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,DreamLab/contrail-controller,sajuptpm/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,vpramo/contrail-controller,nischalsheth/contrail-controller,DreamLab/contrail-controller,numansiddique/contrail-controller,nischalsheth/contrail-controller,cloudwatt/contrail-controller,rombie/contrail-controller,hthompson6/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,facetothefate/contrail-controller,vmahuli/contrail-controller,codilime/contrail-controller,eonpatapon/contrail-controller,srajag/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,rombie/contrail-controller,facetothefate/contrail-controller,tcpcloud/contrail-controller,vpramo/contrail-controller