removed cobald_facts module

roles/cobald/tasks/facts.yml

@@ -0,0 +1,11 @@
+- block:
+  - docker_container_info:
+      name: "{{ container_name | mandatory }}"
+    register: cobald_container_info
+
+  - set_fact:
+      cobald_container_hostname: |-
+        {{cobald_container_info.container.Config.Hostname | default('cobald-'+
+          lookup('password', '/dev/null chars=ascii_lowercase length=6')) }}
+  when: cobald_container_hostname is not defined
+