drop mock dependency

mock is not used anywhere in the module, let's drop it.
This patch will help to hit this bug:
https://launchpad.net/bugs/1492636

Change-Id: Ia4f85ce2088759ec6e07bda994f0c011a0886b36
(cherry picked from commit a7f568f55581c7a906481605565af8c7ff427320)

Gemfile

@@ -13,7 +13,6 @@ group :development, :test do
   gem 'puppet-lint-variable_contains_upcase', :require => 'false'
   gem 'puppet-lint-numericvariable',          :require => 'false'
   gem 'json',                                 :require => 'false'
-  gem 'webmock',                              :require => 'false'
 end
 
 group :system_tests do

spec/classes/aodh_evaluator_spec.rb

@@ -1,6 +1,4 @@
 require 'spec_helper'
-# LP1492636 - Cohabitation of compile matcher and webmock
-WebMock.disable_net_connect!(:allow => "169.254.169.254")
 
 describe 'aodh::evaluator' do
 

spec/classes/aodh_listener_spec.rb

@@ -1,6 +1,4 @@
 require 'spec_helper'
-# LP1492636 - Cohabitation of compile matcher and webmock
-WebMock.disable_net_connect!(:allow => "169.254.169.254")
 
 describe 'aodh::listener' do
 

spec/classes/aodh_notifier_spec.rb

@@ -1,6 +1,4 @@
 require 'spec_helper'
-# LP1492636 - Cohabitation of compile matcher and webmock
-WebMock.disable_net_connect!(:allow => "169.254.169.254")
 
 describe 'aodh::notifier' do
 

spec/spec_helper.rb

@@ -1,6 +1,5 @@
 require 'puppetlabs_spec_helper/module_spec_helper'
 require 'shared_examples'
-require 'webmock/rspec'
 
 RSpec.configure do |c|
   c.alias_it_should_behave_like_to :it_configures, 'configures'