build(galaxy): license and license_file are mutually exclusive

Author: geoffreyvanwyk

galaxy.yml

@@ -28,13 +28,6 @@ description: >
   A variety of Ansible content to help automate the management of Moodle
   instances.
 
-# Either a single license or a list of licenses for content inside of a
-# collection. Ansible Galaxy currently only accepts
-# L(SPDX,https://spdx.org/licenses/) licenses. This key is mutually exclusive
-# with 'license_file'
-license:
-  - GPL-3.0-or-later
-
 # The path to the license file for the collection. This path is relative to the
 # root of the collection. This key is mutually exclusive with 'license'
 license_file: COPYING