Remove github actions docker build.

.github/buildkitd.toml

@@ -1,2 +0,0 @@
-[worker.oci]
-max-parallelism = 1

.github/workflows/build-docker.yml

@@ -1,45 +0,0 @@
-name: Docker Multi-Architecture Build
-
-on:
-  push:
-    paths-ignore:
-      - "**.md"
-    branches:
-      - main
-
-jobs:
-  build-docker-image:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
-        with:
-          platforms: all
-      - name: Set up Docker BuildX
-        uses: docker/setup-buildx-action@v2
-        with:
-          config: .github/buildkitd.toml
-          version: latest
-      - name: Cache Docker layers
-        uses: actions/cache@v3
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-
-      - name: Login to DockerHub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-      - name: Build and push
-        uses: docker/build-push-action@v3
-        with:
-          context: .
-          file: ./Dockerfile
-          platforms: linux/amd64,linux/arm64
-          push: true
-          tags: 1337kavin/restriction-checker:latest
-          cache-from: type=gha
-          cache-to: type=gha,mode=max