[CI] Remove powerdns service as the related code has been moved to its own repository

Author: Mikael Peigney

.github/workflows/ci.yml

@@ -32,15 +32,6 @@ jobs:
           SYMFONY_DEPRECATIONS_HELPER: "ignoreFile=./tests/baseline-ignore"
       - run: |
           bash <(curl -Ls https://coverage.codacy.com/get.sh) report -l PHP -r clover.xml --partial
-    services:
-      powerdns:
-        image: raspberrypython/powerdns-sqlite3:latest
-        env:
-          WEBPASSWD: password
-        ports:
-          - 80:80
-          - 1053:53/tcp
-          - 1053:53/udp
   codacy:
     runs-on: ubuntu-latest
     needs: test