Don't try to run git.config_get_regexp from nonexistant cwd

If the repo has not yet been cloned then this will result in an error.
And since we are checking the global gitconfig here, there's no need to
run it from the target dir.

salt/states/git.py

@@ -691,7 +691,6 @@ def latest(name,
     use_lfs = bool(
         __salt__['git.config_get_regexp'](
             r'filter\.lfs\.',
-            cwd=target,
             **{'global': True}))
     lfs_opts = {'identity': identity} if use_lfs else {}