Remove nginx wr, update docker

* As models were fixed with deletion of unused pillar in offline models
remove WR for that

* Also, as it better to use pkg from mcp replace docker.io with docker-ce

Change-Id: Ice8319c2a9268949d4a1a247a0eb1fb0b66ef1c5
diff --git a/tcp_tests/managers/openstack_manager.py b/tcp_tests/managers/openstack_manager.py
index d47aceb..b0232ca 100644
--- a/tcp_tests/managers/openstack_manager.py
+++ b/tcp_tests/managers/openstack_manager.py
@@ -104,7 +104,7 @@
         else:
             target_name = node_name
 
-        cmd = ("apt-get -y install docker.io")
+        cmd = ("apt-get -y install docker-ce")
         with self.__underlay.remote(node_name=target_name) as node_remote:
             result = node_remote.execute(cmd, verbose=True)