Do not remove remote

In order for girror to support concurrency, removed the `git remote rm` command from girror.
This means that if someone giggled with the remote _manually_, things might not work well. However, since the git repositories
are managed in a private cached maintained by girror and keyed by a _mangled remote url_, i suspect this is not really important and being concurrency-safe is a more imporant feature.

lib/girror.js

@@ -173,8 +173,7 @@ function girror(remote, worktree, options, callback) {
 
       // git remote rm/add origin
       $log('setting up remote origin to ' + remote),
-      $git(dirpath, ['remote', 'rm', 'origin'], true), // ignore errors (in case doesn't exist)
-      $git(dirpath, ['remote', 'add', 'origin', '--mirror=fetch', remote]),
+      $git(dirpath, ['remote', 'add', 'origin', '--mirror=fetch', remote], true), // ignore errors (in case remote already exist)
 
       // git fetch origin
       $log('fetching updates from ' + remote),

package.json

@@ -2,7 +2,7 @@
   "author": "Elad Ben-Israel <elad.benisrael@gmail.com>",
   "name": "girror",
   "description": "Efficient mirror of git repositories. Great for continuous deployment",
-  "version": "0.2.3",
+  "version": "0.2.4",
   "repository": {
     "type": "git",
     "url": "https://github.com/eladb/node-girror"