remove docker workflow

.github/workflows/docker.yml

@@ -1,26 +0,0 @@
-name: Build Docker image
-on:
-    push:
-        branches:
-            - main
-jobs:
-    docker:
-        if: github.repository == 'spaceninjaserver/SpaceNinjaServer'
-        runs-on: ubuntu-latest
-        steps:
-            - name: Set up Docker buildx
-              uses: docker/setup-buildx-action@v3
-            - name: Log in to container registry
-              uses: docker/login-action@v3
-              with:
-                  registry: ghcr.io
-                  username: ${{ github.actor }}
-                  password: ${{ secrets.GITHUB_TOKEN }}
-            - name: Build and push
-              uses: docker/build-push-action@v6
-              with:
-                  platforms: linux/amd64,linux/arm64
-                  push: true
-                  tags: |
-                      ghcr.io/spaceninjaserver/spaceninjaserver:latest
-                      ghcr.io/spaceninjaserver/spaceninjaserver:${{ github.sha }}