Merge branch 'remove-license-docs' into 'master'

Docs: How to remove a license

See merge request gitlab-org/gitlab!39773

doc/user/admin_area/license.md

@@ -102,6 +102,14 @@ In order to get back all the previous functionality, a new license must be uploa
 To fall back to having only the Core features active, you'll need to delete the
 expired license(s).
 
+### Remove a license
+
+To remove a license from a self-managed instance:
+
+1. Go to the [Admin Area](index.md) (click the wrench in the top navigation bar).
+1. Click **License** in the left sidebar.
+1. Click **Remove License**.
+
 ## License history
 
 It's possible to upload and view more than one license,