[gimp] gitlab-ci: remove "when: always" in flatpak job.

[Jehan <jehanp src gnome org>]

commit e6d3e898d8eb065ea5af885eb65b1751950c4704
Author: Jehan <jehan girinstud io>
Date:   Wed May 26 19:51:31 2021 +0200

    gitlab-ci: remove "when: always" in flatpak job.
    
    This clashes with the usage of "rules:" and is even more useless as it
    is about checking success of earlier stages (yet this job doesn't need
    to wait for any other job).
    Fixes CI error:
    
    > jobs:flatpak config key may not be used with `rules`: when

 .gitlab-ci.yml | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f0921e8541..7edf460229 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -552,7 +552,6 @@ flatpak:
   extends: .flatpak
   stage: gimp
   needs: []
-  when: always
   rules:
     # Custom builds though web GUI, API or schedules.
     - if: '$GIMP_CI_FLATPAK != null'