scenario004: disable watcher

Watcher introduced a new dependency with:
a015af1bd2

But RDO doesn't have any package for Monasca yet.
Let's disable Watcher until packages are built in RDO and dependencies
are fixed.

Change-Id: I321e7830aa3a94e23dac422470ba98a63a666fab

README.md

@@ -69,7 +69,6 @@ scenario](#all-in-one).
 | ceph       |      X      |             |             |      X      |              |
 | ceph rgw   |             |             |             |      X      |              |
 | mongodb    |             |       X     |             |             |              |
-| watcher    |             |             |             |      X      |              |
 
 When the Jenkins slave is created, the *run_tests.sh* script will executed.
 This script will execute *install_modules.sh* that prepare /etc/puppet/modules

fixtures/scenario004.pp

@@ -23,7 +23,9 @@ if $::operatingsystem == 'Ubuntu' {
 } else {
   $ssl_enabled     = true
   $ipv6            = true
-  $watcher_enabled = true
+  # Re-enable Watcher when monascaclient is packaged in RDO and
+  # added to Watcher dependencies.
+  $watcher_enabled = false
 }
 
 include ::openstack_integration