remove --extra-vars since the new YAML inventory stuff wasn't quite using it as designed and it is getting hard to follow

with that and SETUP_CACHE etc

bin/ansible-playbook

@@ -34,8 +34,6 @@ def main(args):
     # create parser for CLI options
     usage = "%prog playbook.yml"
     parser = utils.base_parser(constants=C, usage=usage, connect_opts=True, runas_opts=True)
-    parser.add_option('-e', '--extra-vars', dest='extra_vars',
-        help='arguments to pass to the inventory script')
     parser.add_option('-O', '--override-hosts', dest="override_hosts", default=None,
         help="run playbook against these hosts regardless of inventory settings")
 
@@ -67,7 +65,6 @@ def main(args):
             module_path=options.module_path,
             host_list=options.inventory, 
             override_hosts=override_hosts,
-            extra_vars=options.extra_vars,
             forks=options.forks, 
             debug=options.debug, 
             verbose=True,