client: remove solaris build-tag, simplify and gofumpt
client: remove solaris build-tag, simplify and gofumpt

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

Mokolea/docker,thaJeztah/docker,trebonian/docker,konstruktoid/docker-upstream,mahak/docker,Mokolea/docker,jimjag/docker,jimjag/docker,moby/moby,trebonian/docker,thaJeztah/docker,konstruktoid/docker-upstream,thaJeztah/docker,Ramzec/docker,moby/moby,moby/moby,konstruktoid/docker-upstream,Mokolea/docker,moby/moby,Ramzec/docker,mahak/docker,trebonian/docker,Ramzec/docker,trebonian/docker,mahak/docker,jimjag/docker,thaJeztah/docker,jimjag/docker,Mokolea/docker,Ramzec/docker,konstruktoid/docker-upstream,mahak/docker