Deprecation of verbose option from oslo.log

This change remove the verbose option from sahara config due to its
deprecation.
More info:
http://lists.openstack.org/pipermail/openstack-dev/2016-May/095166.html

Change-Id: I5b442629d225e1c928a4e7a379b77e9d7f1e8da1

defaults/main.yml

@@ -13,7 +13,6 @@
 
 ## Verbosity Options
 debug: False
-verbose: True
 
 sahara_git_repo: https://git.openstack.org/openstack/sahara
 sahara_git_install_branch: master

templates/sahara.conf.j2

@@ -4,7 +4,6 @@
 {% set api_threads = _api_threads if _api_threads > 0 else 1 %}
 
 [DEFAULT]
-verbose = {{ verbose }}
 debug = {{ debug }}
 log_file = /var/log/sahara/sahara.log
 fatal_deprecations = {{ sahara_fatal_deprecations }}