refactor: remove unused image building workflow

.github/workflows/tag-on-merge.yml

@@ -27,36 +27,3 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # if you don't want to set write permissions use a PAT token
           WITH_V: true
-
-  release-image:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out the repo
-        uses: actions/checkout@v4
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      # all lowercase ghcr registry
-      - run: |
-          DOCKER_REGISTRY=`echo "${{ env.REGISTRY }}/${{ github.repository_owner }}" | tr '[:upper:]' '[:lower:]'`
-          echo "DOCKER_REGISTRY=$DOCKER_REGISTRY" >> $GITHUB_ENV
-
-          REPO_NAME=`echo "${{ github.repository }}" | awk -F'/' '{print $2}' | tr '[:upper:]' '[:lower:]'`
-          echo "REPO_NAME=$REPO_NAME" >> $GITHUB_ENV
-
-      - name: Parse tag
-        id: tag
-        run: |
-          # v0.0.1
-          VERSION=$(echo ${{ github.ref_name }} | sed "s/v//")
-          # 0.0.1
-          echo "VERSION=$VERSION" >> $GITHUB_ENV
-
-      # build and publish package to ghcr (public) with codebase remaining private
-      - name: Log in to the Container registry
-        uses: docker/login-action@v2
-        with:
-          registry: ${{ env.REGISTRY }}
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}