do not build v11 for centos7

Author: zmiklank

.github/workflows/build-and-push.yml

@@ -20,12 +20,6 @@ jobs:
             tag: "centos7"
             quayio_username: "QUAY_IMAGE_BUILDER_USERNAME"
             quayio_token: "QUAY_IMAGE_BUILDER_TOKEN"
-          - dockerfile_path: "11"
-            dockerfile: "Dockerfile"
-            registry_namespace: "centos7"
-            tag: "centos7"
-            quayio_username: "QUAY_IMAGE_BUILDER_USERNAME"
-            quayio_token: "QUAY_IMAGE_BUILDER_TOKEN"
           - dockerfile_path: "12"
             dockerfile: "Dockerfile"
             registry_namespace: "centos7"