ignore SDL for now

Author: Motobug

Distribution/flatpak/flatpak.yml

@@ -97,7 +97,7 @@ modules:
         sha256: 0ed2a69fe6ee6cbffd2fe16f85116db737f17fb1e79bfb812d893cf15c728399
 
   # build the vendored SDL2 from Externals until the runtime gets 2.30.9
-  - SDL2.json
+  # - SDL2.json
 
   - name: project-plus-dolphin
     buildsystem: cmake-ninja