Remove asset pipeline option
Remove asset pipeline option

- this is now set on true by default on Rails 4

lutgendorff/smart-answers,stwalsh/smart-answers,tadast/smart-answers,alphagov/smart-answers,stwalsh/smart-answers,tadast/smart-answers,askl56/smart-answers,alphagov/smart-answers,aledelcueto/smart-answers,alphagov/smart-answers,lutgendorff/smart-answers,stwalsh/smart-answers,askl56/smart-answers,lutgendorff/smart-answers,aledelcueto/smart-answers,tadast/smart-answers,askl56/smart-answers,askl56/smart-answers,tadast/smart-answers,aledelcueto/smart-answers,stwalsh/smart-answers,aledelcueto/smart-answers,lutgendorff/smart-answers,alphagov/smart-answers