removing old platforms from helpers.rb
removing old platforms from helpers.rb

Amakata/mysql,nkadel-skyhook/nkadel-mysql-cookbook,nkadel-skyhook/nkadel-mysql-cookbook,acoulton/mysql,Amakata/mysql,acoulton/mysql,chef-cookbooks/mysql,damiendurant/mysql,GannettDigital/chef-mysql,damiendurant/mysql,GannettDigital/chef-mysql,chef-cookbooks/mysql,damiendurant/mysql,GannettDigital/chef-mysql,chef-cookbooks/mysql,Amakata/mysql,nkadel-skyhook/nkadel-mysql-cookbook,acoulton/mysql