Merge branch 'ee_features_in_example_config' into 'master'

Removes reference to Enterprise Edition ssh key sync feature.

fixes #2042

See merge request !1017

config/gitlab.yml.example

@@ -424,7 +424,6 @@ test:
         user_filter: ''
         group_base: 'ou=groups,dc=example,dc=com'
         admin_group: ''
-        sync_ssh_keys: false
 
 staging:
   <<: *base