sshrepo: don't try to validate when creating the repo - This removes the "repo not found" error when cloning or init-ing a remote repo. - Since the remote hg will abort if the repo already exists we don't need to validate it.

changeset:   0:9426b370c206
tag:         tip
user:        My Name <myname@example.com>
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     commit-1