drop unused test rootwrap filter file
drop unused test rootwrap filter file

The file was used by _test_rootwrap_exec that was dropped lately as
I1667f2127b045cf002ae8516624afe9efe919fb7, but was not spotted during
that time.

Clean it up too.

Change-Id: I9125d2fdc2d9b1bf20d18a2dfca6f62b33198d7e

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