remove dead link checking (in mr #36)

.github/workflows/docs-build.yml

@@ -15,17 +15,4 @@ jobs:
           python-version: 3.x
       - run: pip install -r requirements.txt
       - run: mkdocs build --strict
-  check-dead-links:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
-        with:
-          python-version: 3.x
-      - uses: gaurav-nelson/github-action-markdown-link-check@0f074c8562c5a8fed38282b7c741d1970bb1512d
-        with:
-          use-quiet-mode: 'yes'
-          use-verbose-mode: 'yes'
-          config-file: '.github/workflows/markdown.links.config.json'
-          folder-path: 'docs'