Fixed # of hosts - job details UI

In the UI job details page, the number of hosts for any job was always displayed '1'
irrespective of the actual count. This was caused because of a faulty initialization
of variable followed by unreachable code. It has been fixed by updating init value.

Signed-off-by: Vismay Golwala <vgolwala@redhat.com>

awx/ui/client/features/output/status.service.js

@@ -32,7 +32,7 @@ function JobStatusService (moment, message) {
             counts: {
                 plays: 0,
                 tasks: 0,
-                hosts: 1,
+                hosts: 0,
             },
             hosts: {},
             status: model.get('status'),