Remove Keycloak (#15567)

remove keycloak

tools/docker-compose/ansible/roles/sources/templates/docker-compose.yml.j2

@@ -127,25 +127,6 @@ services:
     - "awx_{{ container_postfix }}"
   {% endfor %}
 {% endif %}
-{% if enable_keycloak|bool %}
-  keycloak:
-    image: quay.io/keycloak/keycloak:15.0.2
-    container_name: tools_keycloak_1
-    hostname: keycloak
-    user: "{{ ansible_user_uid }}"
-    networks:
-      - awx
-    ports:
-      - "8443:8443"
-    environment:
-      DB_VENDOR: postgres
-      DB_ADDR: postgres
-      DB_DATABASE: keycloak
-      DB_USER: {{ pg_username }}
-      DB_PASSWORD: {{ pg_password }}
-    depends_on:
-      - postgres
-{% endif %}
 {% if enable_splunk|bool %}
   splunk:
     image: splunk/splunk:latest