Checklist: remove contrast check (#535)

Author: danirabbit

.github/workflows/checklist.yml

@@ -36,11 +36,10 @@
                 - [ ] Matches screenshot
                 - [ ] Launchable tag with matching ID
                 - [ ] Release tag with matching version and YYYY-MM-DD date
-                - [ ] Custom colors meet WCAG A contrast or greater
                 - [ ] OARS info matches
 
                 ### Flatpak
                 - [ ] Uses elementary runtime
                 - [ ] Sandbox permissions are reasonable
 
-      
+