Remove possible stale containers first
Remove possible stale containers first

- So test will not fail because container is already there
  Prefer this to re-use the containers as it would contain
  states from last run
- A stale consul or dnet container condition will happen
  in case the previous integ test run aborted

Signed-off-by: Alessandro Boch <5bd2eb5b6f60921d9a2b9cb6a0a86bb947f3d361@docker.com>

konstruktoid/docker-upstream,gnailuy/docker,AkihiroSuda/docker,thaJeztah/docker,vdemeester/docker,cpuguy83/docker,nawawi/docker,moby/moby,flavio/docker,moby/moby,mahak/docker,Mokolea/docker,Mokolea/docker,jthelin/docker,Ramzec/docker,nalind/docker,Mokolea/docker,flavio/docker,jameszhan/docker,mahak/docker,jameszhan/docker,jimjag/docker,jimjag/docker,cpuguy83/docker,moul/docker,thaJeztah/docker,jthelin/docker,trebonian/docker,djs55/docker,thaJeztah/docker,paralin/docker,konstruktoid/docker-upstream,bearstech/moby,gnailuy/docker,docker/docker,mahak/docker,vdemeester/docker,moul/docker,Mokolea/docker,nalind/docker,nalind/docker,yosifkit/docker,paralin/docker,trebonian/docker,konstruktoid/docker-upstream,AkihiroSuda/docker,djs55/docker,flavio/docker,moul/docker,thaJeztah/docker,cpuguy83/docker,docker/docker,Ramzec/docker,moby/moby,konstruktoid/docker-upstream,gnailuy/docker,moby/moby,AkihiroSuda/docker,trebonian/docker,nalind/docker,Ramzec/docker,bearstech/moby,Ramzec/docker,bearstech/moby,yosifkit/docker,vdemeester/docker,paralin/docker,trebonian/docker,gnailuy/docker,moul/docker,AkihiroSuda/docker,flavio/docker,paralin/docker,nawawi/docker,jimjag/docker,bearstech/moby,yosifkit/docker,jameszhan/docker,nawawi/docker,nawawi/docker,djs55/docker,mahak/docker,cpuguy83/docker,jimjag/docker,docker/docker,yosifkit/docker