Do not vendor cookbooks using Berkshelf anymore

Instead, use the Berkshelf support in knife-solo and the
vagrant-berkshelf plugin on Vagrant

cookbooks/application_javascript/libraries/default.rb

@@ -1,19 +0,0 @@
-#
-# Copyright 2015, Noah Kantrowitz
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-raise 'Halite is not compatible with no_lazy_load false, please set no_lazy_load true in your Chef configuration file.' unless Chef::Config[:no_lazy_load]
-$LOAD_PATH << File.expand_path('../../files/halite_gem', __FILE__)
-require "poise_application_javascript/cheftie"