Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/mysql/templates/default/upstart/mysqld.erb

@@ -1,26 +0,0 @@
-# <%= @mysql_name %> Service
-
-description     "MySQL service <%= @mysql_name %>"
-author          "chef-client"
-
-start on runlevel [2345]
-stop on starting rc RUNLEVEL=[016]
-
-respawn
-respawn limit 2 5
-
-env HOME=/etc/<%= @mysql_name %>
-umask 007
-
-kill timeout 300
-
-pre-start script
-[ -d /run/<%= @mysql_name %> ] || install -m 755 -o <%= @run_user %> -g <%= @run_group %> -d /run/<%= @mysql_name %>
-[ -d <%= @socket_dir %> ] || install -m 755 -o <%= @run_user %> -g <%= @run_group %> -d <%= @socket_dir %>
-end script
-
-exec /usr/sbin/mysqld --defaults-file=<%= @defaults_file %>
-
-post-start script
-/usr/sbin/<%= @mysql_name %>-wait-ready
-end script