Revert last changes over hackfest_multivdu package

hackfest_multivdu_vnf/cloud_init/cloud-config.txt

-#cloud-config
-password: osm4u
-chpasswd: { expire: False }
-ssh_pwauth: True
-
-write_files:
--   content: |
-        # My new helloworld file
-
-    owner: root:root
-    permissions: '0644'
-    path: /root/helloworld.txt

hackfest_multivdu_vnf/hackfest_multivdu_vnfd.yaml

@@ -21,7 +21,7 @@ vnfd-catalog:
         vdu:
         -   id: mgmtVM
             name: mgmtVM
-            image: ubuntu16.04
+            image: US1604
             count: 1
             vm-flavor:
                 vcpu-count: 1
@@ -42,10 +42,9 @@ vnfd-catalog:
                 internal-connection-point-ref: mgmtVM-internal
             internal-connection-point:
             -   id: mgmtVM-internal
-            cloud-init-file: cloud-config.txt
         -   id: dataVM
             name: dataVM
-            image: ubuntu16.04
+            image: US1604
             count: 1
             vm-flavor:
                 vcpu-count: 1
@@ -66,5 +65,4 @@ vnfd-catalog:
                 external-connection-point-ref: vnf-data
             internal-connection-point:
             -   id: dataVM-internal
-            cloud-init-file: cloud-config.txt