Remove leftovers from mongodb

MongoDB is not longer the default or recommended backend for
OpenStack services and services are using other data stores.

This patch removes mongodb puppet module installation from p-o-i
and hiera config file.

Change-Id: I3d437ea6f5cfe6a887903ffb4da009439cf144e9

Puppetfile

@@ -190,10 +190,6 @@ mod 'inifile',
   :git => 'https://github.com/puppetlabs/puppetlabs-inifile',
   :ref => '2.1.1'
 
-mod 'mongodb',
-  :git => 'https://github.com/puppetlabs/puppetlabs-mongodb',
-  :ref => 'v2.0.0'
-
 mod 'mysql',
   :git => 'https://github.com/puppetlabs/puppetlabs-mysql',
   :ref => '5.2.0'

external_modules.txt

@@ -8,7 +8,6 @@ puppetlabs/puppetlabs-apt,2.4.0
 puppetlabs/puppetlabs-concat,2.2.1
 puppetlabs/puppetlabs-firewall
 puppetlabs/puppetlabs-inifile
-puppetlabs/puppetlabs-mongodb
 puppetlabs/puppetlabs-mysql
 puppetlabs/puppetlabs-postgresql
 puppetlabs/puppetlabs-rabbitmq

hiera/common.yaml

@@ -1,3 +1,2 @@
 ---
 apache::default_vhost: false
-mongodb::server::dbpath_fix: false