Revert "add a 10s timeout to the client object."

This reverts commit 59defcb34d which caused #1892
since the timeout applied not only to the dial phase but to everything, so it
would kill `docker logs -f ...` if the container was not chatty enough.

Signed-off-by: Ian Campbell <ijc@docker.com>

cli/context/docker/load.go

@@ -122,7 +122,6 @@ func (c *Endpoint) ClientOpts() ([]client.Opt, error) {
 				client.WithDialContext(helper.Dialer),
 			)
 		}
-		result = append(result, client.WithTimeout(10*time.Second))
 	}
 
 	version := os.Getenv("DOCKER_API_VERSION")