chore: Remove duplicate upload_to_pypi job from build.yml

The upload_to_pypi job is already present in conda-build.yml, which will
supersede the Docker-based build.yml workflow.

Author: czgdp1807

.github/workflows/build.yml

@@ -25,29 +25,3 @@ jobs:
       uses: ./.github/reusable-build
       with:
         python-version: ${{ matrix.python-version }}
-
-  upload_to_pypi:
-    name: Upload to PyPI
-    runs-on: ubuntu-latest
-    if: (github.event_name == 'release' && startsWith(github.ref, 'refs/tags')) || (github.event_name == 'workflow_dispatch')
-    needs: [build]
-    environment:
-      name: pypi
-      url: https://pypi.org/p/ml-metadata/
-    permissions:
-      id-token: write
-    steps:
-      - name: Retrieve wheels
-        uses: actions/download-artifact@v4.1.8
-        with:
-          merge-multiple: true
-          path: wheels
-
-      - name: List the build artifacts
-        run: |
-          ls -lAs wheels/
-
-      - name: Upload to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1.9
-        with:
-          packages_dir: wheels/