(maint) Remove failing acceptance test for ensure_packages

This only duplicates what's already being tested in ensure_packages_spec.rb
but doesn't work on all our supported platforms.

spec/acceptance/ensure_packages_spec.rb

@@ -1,22 +0,0 @@
-#! /usr/bin/env ruby -S rspec
-require 'spec_helper_acceptance'
-
-describe 'ensure_packages function', :unless => fact('osfamily') =~ /windows/i do
-  describe 'success' do
-    it 'ensure_packages a package' do
-      apply_manifest('package { "rake": ensure => absent, provider => "gem", }')
-      pp = <<-EOS
-      $a = "rake"
-      ensure_packages($a,{'provider' => 'gem'})
-      EOS
-
-      apply_manifest(pp, :expect_changes => true)
-    end
-    it 'ensures a package already declared'
-    it 'takes defaults arguments'
-  end
-  describe 'failure' do
-    it 'handles no arguments'
-    it 'handles non strings'
-  end
-end