Remove unnecessary Github CI

.github/workflows/update-base-image.yml

@@ -1,50 +0,0 @@
-name: "Update image and push to Github Packages and Docker Hub weekly"
-on:
-  schedule:
-    - cron: "0 12 * * 1" # Run every Monday at noon.
-  workflow_dispatch:
-jobs:
-  rebuild-container:
-    name: "Rebuild Container with the latest base image"
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1.6.0
-      -
-        name: Login to GitHub Container Registry
-        uses: docker/login-action@v1.10.0 
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-      -
-        name: Login to DockerHub
-        uses: docker/login-action@v1.10.0 
-        with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: "Checkout repository"
-        uses: "actions/checkout@v2.3.4"
-      -
-        name: Build and push to Docker Hub and Github Packages Docker Registry
-        id: docker_build
-        uses: docker/build-push-action@v2.7.0
-        with:
-          push: true
-          tags: |
-            ghcr.io/${{ github.repository_owner }}/p2pool:latest
-            ${{ secrets.DOCKER_USERNAME }}/p2pool:latest
-          labels: |
-            org.opencontainers.image.source=${{ github.event.repository.html_url }}
-            org.opencontainers.image.created=${{ steps.prep.outputs.created }}
-            org.opencontainers.image.revision=${{ github.sha }}
-      - 
-        name: Scan new image and output results
-        uses: Azure/container-scan@v0
-        with:
-          image-name: ${{ secrets.DOCKER_USERNAME }}/p2pool:latest
-          severity-threshold: HIGH
-      -
-        name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}