remove readme-updates from mastercheck CI build

.github/workflows/mastercheck.yml

@@ -37,33 +37,3 @@ jobs:
       - name: Report end of tests
         run: echo "tests finished"
 
-  update-readme:
-    runs-on: ubuntu-latest
-    permissions: 
-      id-token: write
-      contents: write
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: goto-bus-stop/setup-zig@v2
-        with:
-          version: master
-
-      - name: Build announceybot
-        run: zig build announceybot
-
-      - name: Run script to update README
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          TAG_NAME: ${{ steps.tag.outputs.version }}
-        run: |
-          zig-out/bin/announceybot update-readme "zig-master"
-  
-      - name: Commit and push if it has changed
-        run: |
-          git diff
-          git checkout zig-master
-          git config --local user.email "action@github.com"
-          git config --local user.name "GitHub Action"
-          git commit -am "Update README"
-          git push origin zig-master