Remove gitea action

.gitea/workflows/build-iso.yml

@@ -1,29 +0,0 @@
-name: Build ISO and Upload Artifact
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  build-and-upload:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Make scripts executable
-        run: chmod +x ./scripts/build_c.sh ./scripts/out_to_iso.sh
-
-      - name: Run build_c.sh
-        run: ./scripts/build_c.sh
-
-      - name: Run out_to_iso.sh
-        run: ./scripts/out_to_iso.sh
-
-      - name: Upload ISO artifact
-        uses: actions/upload-artifact@v4
-        with:
-          name: built-iso
-          path: out/lints.iso