Remove default username for sensu

In some cases we need a passwordless sensu dashboard for different reasons, for example if we would like to manage the Auth using Nginx + Google_Auth_proxy[1].

Adding the default sensu user on the provider would mean that we have to authenticate everytime which doesn't make much sense.

[1] https://github.com/bitly/google_auth_proxy

lib/puppet/type/sensu_dashboard_config.rb

@@ -46,7 +46,6 @@ def initialize(*args)
   newproperty(:user) do
     desc "The username to use when connecting to the Sensu Dashboard"
 
-    defaultto 'sensu'
   end
 
   newparam(:base_path) do