The primary need for this is x/net/context now is just a type alias to
the stdlib context package.
This makes issues with conflicts between "golang.org/x/net/context" and
the stdib "context" go away (primarily a concern in interface
definitions/implementations).
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
and update some dependent packages.
We would like to keep moby/moby and swarmkit somewhat in sync here and
https://github.com/docker/swarmkit/pull/2229 proposes a similar bump to
swarmkit, needed due to https://github.com/docker/swarmkit/pull/1965 which
pulls in containerd which uses some newer features of the grpc package.
Signed-off-by: Ian Campbell <ian.campbell@docker.com>
