CORD-1175 Always rebuild all XOS containers

Change-Id: Iad9bd3ed843ec1416d80d2e6940060e4d71d30a5
diff --git a/roles/xos-core-build/tasks/main.yml b/roles/xos-core-build/tasks/main.yml
index b2d14b2..a96d419 100644
--- a/roles/xos-core-build/tasks/main.yml
+++ b/roles/xos-core-build/tasks/main.yml
@@ -49,6 +49,5 @@
     tag: "{{ build_docker_tag }}"
     dockerfile: "containers/xos/Dockerfile.UI"
     pull: False
-    force: yes
-
-
+    force: True
+    rm: False