Remove multi-arch

Author: wfg

.github/workflows/publish.yml

@@ -20,18 +20,6 @@ jobs:
         id: get_version
         run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/v}
 
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v1
-        id: qemu
-        with:
-          platforms: linux/amd64,linux/arm64,linux/arm/v7
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
-        id: buildx
-        with:
-          install: true
-
       - name: Log in to registry
         uses: docker/login-action@v1
         with:
@@ -42,7 +30,6 @@ jobs:
       - name: Build and push
         uses: docker/build-push-action@v2
         with:
-          platforms: ${{ steps.qemu.outputs.platforms }}
           tags: |
             ghcr.io/wfg/openvpn-client:${{ steps.get_version.outputs.VERSION }}
             ghcr.io/wfg/openvpn-client:latest