Remove redundant 2nd attempt to wait for build

The 2nd attempt to wait for build was originally added to
improve the CI reliability in case the 1st attempt failed, but
apparently the CI would not automatically resume even if the
2nd attempt was successful, and it's also generating warnings
about skipped checks, so it has been removed.

.github/workflows/wait-for-build.yml

@@ -34,36 +34,3 @@ jobs:
 
       - name: Load PKI images
         run: docker load --input pki-images.tar
-
-  waiting-for-build2:
-    name: Waiting For Build - 2nd attempt
-    runs-on: ubuntu-latest
-    needs: waiting-for-build
-    if: ${{ failure() }}
-    steps:
-      - name: Wait for build
-        uses: lewagon/[email protected]
-        with:
-          ref: ${{ github.sha }}
-          check-name: 'Building PKI'
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          wait-interval: 60
-        if: github.event_name == 'push'
-
-      - name: Wait for build
-        uses: lewagon/[email protected]
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-          check-name: 'Building PKI'
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-          wait-interval: 60
-        if: github.event_name == 'pull_request'
-
-      - name: Retrieve PKI images
-        uses: actions/cache@v3
-        with:
-          key: pki-images-${{ github.sha }}
-          path: pki-images.tar
-
-      - name: Load PKI images
-        run: docker load --input pki-images.tar