Do not ping registry from the cli

Fixes #3683

This a problem because the cli was pinging the registry to inspect the transport if not provided.  I moved this to the daemon so that all requests to the registries flow thought the daemon.  This is true for every command, even login, expect for this first ping if a registry was provided. 

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)