These are no longer 'new_services'

This dates from when our code was if lms/cms, else xque, else
new_service.  Now that lms/cms are lumped into new_services, name it
services.

playbooks/roles/supervisor/files/pre_supervisor_checks.py

@@ -217,7 +217,7 @@ if __name__ == '__main__':
                         if 'Migrating' in output:
                             raise Exception("Migrations have not been run for {}".format(service))
                 else:
-                    new_services = {
+                    services = {
                         "lms": {'python': args.edxapp_python, 'env_file': args.edxapp_env, 'code_dir': args.edxapp_code_dir},
                         "cms": {'python': args.edxapp_python, 'env_file': args.edxapp_env, 'code_dir': args.edxapp_code_dir},
                         "ecommerce": {'python': args.ecommerce_python, 'env_file': args.ecommerce_env, 'code_dir': args.ecommerce_code_dir},
@@ -226,8 +226,8 @@ if __name__ == '__main__':
                         "analytics_api": {'python': args.analytics_api_python, 'env_file': args.analytics_api_env, 'code_dir': args.analytics_api_code_dir}
                     }
 
-                    if service in new_services and all(arg!=None for arg in new_services[service].values()) and service in MIGRATION_COMMANDS:
-                        serv_vars = new_services[service]
+                    if service in services and all(arg!=None for arg in services[service].values()) and service in MIGRATION_COMMANDS:
+                        serv_vars = services[service]
 
                         cmd = MIGRATION_COMMANDS[service].format(**serv_vars)
                         if os.path.exists(serv_vars['code_dir']):