Fix lint errors with the latest lint packages

This change fixes the following lint errors discovered since we removed
pin of lint packages.

manifests/init.pp:153:WARNING: Duplicate class parameter documentation
for cloudkitty::rpc_response_timeout
manifests/init.pp:11:WARNING: Duplicate class parameter documentation
for cloudkitty::rpc_response_timeout
manifests/init.pp:189:WARNING: No matching class parameter for
documentation of cloudkitty::enable_proxy_headers_parsing
manifests/init.pp:184:WARNING: No matching class parameter for
documentation of cloudkitty::region_name
manifests/init.pp:178:WARNING: No matching class parameter for
documentation of cloudkitty::flavor

Note that this change removes description about the following three
parameters, since these parameters have never been implemented.

- cloudkitty::flavor
- cloudkitty::region_name
- cloudkitty::enable_proxy_headers_parsing

Change-Id: Ib2978ad343939e54c0296c86d23617e50ce923fb

manifests/init.pp

@@ -8,10 +8,6 @@
 #    (Optional) Ensure state for package.
 #    Defaults to 'present'
 #
-# [*rpc_response_timeout*]
-#   (Optional) Configure the timeout (in seconds) for rpc responses
-#   Defaults to $::os_service_default.
-#
 # [*rabbit_ha_queues*]
 #   (optional) Use HA queues in RabbitMQ (x-ha-policy: all).
 #   Defaults to $::os_service_default.
@@ -175,22 +171,6 @@
 #   (optional) AMQP topic used for OpenStack notifications
 #   Defaults to ::os_service_default
 #
-# [*flavor*]
-#   (optional) Specifies the Authentication method.
-#   Set to 'standalone' to get cloudkitty to work with a remote OpenStack
-#   Tested versions include 0.9 and 2.2
-#   Defaults to $::os_service_default.
-#
-# [*region_name*]
-#   (Optional) Region name for services. This is the
-#   default region name that cloudkitty talks to service endpoints on.
-#   Defaults to $::os_service_default.
-#
-# [*enable_proxy_headers_parsing*]
-#   (Optional) Enable paste middleware to handle SSL requests through
-#   HTTPProxyToWSGI middleware.
-#   Defaults to $::os_service_default.
-#
 # [*purge_config*]
 #   (optional) Whether to set only the specified config options
 #   in the cloudkitty config.