Do not vendor cookbooks using Berkshelf anymore

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

cookbooks/apache2/templates/default/mods/userdir.conf.erb

@@ -1,17 +0,0 @@
-<% if node['apache']['version'] == '2.4' -%>
-<IfModule mod_userdir.c>
-  UserDir public_html
-  UserDir disabled root
-
-  <Directory /home/*/public_html>
-    AllowOverride FileInfo AuthConfig Limit Indexes
-    Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec
-    <Limit GET POST OPTIONS>
-	Require all granted
-    </Limit>
-    <LimitExcept GET POST OPTIONS>
-	Require all denied
-    </LimitExcept>
-  </Directory>
-</IfModule>
-<% end -%>