libnetwork/resolvconf: remove README.md
libnetwork/resolvconf: remove README.md

This information was already documented in the package's GoDoc, so
no need to repeat it.

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

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