removed styles used for the bank holiday calendar from core.css
removed styles used for the bank holiday calendar from core.css

tadast/static,robinwhittleton/static,tadast/static,alphagov/static,tadast/static,robinwhittleton/static,alphagov/static,kalleth/static,kalleth/static,tadast/static,alphagov/static,robinwhittleton/static,robinwhittleton/static,kalleth/static,kalleth/static