Remove unused coverage check

.github/workflows/tests.yml

@@ -43,52 +43,6 @@ jobs:
         path: .coverage*
         if-no-files-found: ignore
 
-  coverage:
-    name: Combine & check coverage.
-    needs: tests
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - uses: actions/setup-python@v4
-        with:
-          cache: pip
-          python-version: "3.11"
-
-      - name: Set up environment
-        run: |
-          pip install --upgrade "coverage[toml]>=5.1" diff-cover
-
-      - uses: actions/download-artifact@v3
-        with:
-          name: coverage-data
-
-      - name: Fetch master for coverage diff
-        run: |
-          git fetch --no-tags --prune origin main
-
-      - name: Combine coverage & fail if it's <100%.
-        run: |
-          # Combine coverage files (not needed now, but maybe later)
-          # python -m coverage combine
-
-          # Produce an html report with absolute coverage information
-          python -m coverage html --skip-covered --skip-empty
-
-          # Report relative coverage and write to the workflow's summary
-          python -m coverage xml
-          diff-cover coverage.xml --markdown-report=coverage.md --fail-under=100 || (cat coverage.md >> $GITHUB_STEP_SUMMARY && exit 1)
-
-      - name: Upload HTML report if check failed.
-        uses: actions/upload-artifact@v3
-        with:
-          name: html-report
-          path: htmlcov
-        if: ${{ failure() }}
-
   build-wheel:
     name: Build Wheel and Test SDist
     runs-on: ubuntu-latest