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.
#header#
<title>Mercurial Error</title>
</head>
<body>
<h2>Mercurial Error</h2>
<p>
An error occured while processing your request:
</p>
<p>
#error|escape#
</p>
#footer#