ci: don't test flatpak build

Flathub now builds from source so this is obsolete

Author: adil192

.github/workflows/linux.yml

@@ -167,42 +167,3 @@ jobs:
           repo_token: ${{ secrets.GITHUB_TOKEN }}
           file: appimage/Saber-*-x86_64.AppImage*
           file_glob: true
-
-  build-flatpak:
-    name: Build Flatpak
-    needs: build-linux
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    container:
-      image: ghcr.io/flathub-infra/flatpak-github-actions:gnome-48
-      options: --privileged
-    steps:
-      - name: Checkout flathub repo
-        uses: actions/checkout@v6
-        with:
-          repository: flathub/com.adilhanney.saber
-          submodules: recursive
-
-      - name: Download app archive
-        uses: actions/download-artifact@v7
-        with:
-          name: Saber-Archive-x86_64
-
-      - name: Rename app archive
-        run: |
-          mv Saber_*.tar.gz Saber_snapshot.tar.gz
-
-      - name: Patch manifest to use local archive
-        run: |
-          # Add --no-same-owner to tar in build-commands
-          jq '.modules? |= map(if type=="object" and .name=="saber" then .["build-commands"] |= map(if type=="string" then sub("tar -xf "; "tar --no-same-owner -xf ") else . end) else . end)' com.adilhanney.saber.json > tmp.json && mv tmp.json com.adilhanney.saber.json
-
-          # Replace sources with local archive
-          jq '.modules[]? |= if type=="object" and .name=="saber" then .sources = [ {"type":"file","path":"./Saber_snapshot.tar.gz"} ] else . end' com.adilhanney.saber.json > tmp.json && mv tmp.json com.adilhanney.saber.json
-
-      - name: Build Flatpak
-        uses: flatpak/flatpak-github-actions/flatpak-builder@v6
-        with:
-          bundle: Saber_snapshot.flatpak
-          manifest-path: com.adilhanney.saber.json
-          upload-artifact: true