Revert "feat: build arm64 version of xhprof image"

This reverts commit f7d7f243d4.

.github/workflows/main.yml

@@ -114,6 +114,11 @@ jobs:
         include:
           - version: 'latest'
             flavor: ''
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -181,10 +186,9 @@ jobs:
             ghcr.io/chialab/php-pcov:${{ matrix.version }}${{ matrix.flavor }}
           push: true
 
-      - name: Build xhprof image and push to registry
+      - name: Build xhprof image (amd64 only) and push to registry
         uses: docker/build-push-action@v4
         with:
-          platforms: linux/amd64,linux/arm64
           cache-to: type=inline
           context: ./xhprof
           build-args: |