remove addExpiresHeaders

src/middleware/headers.js

@@ -23,17 +23,5 @@ module.exports = function (middleware) {
 
 		next();
 	};
-
-	middleware.addExpiresHeaders = function (req, res, next) {
-		if (req.app.enabled('cache')) {
-			res.setHeader('Cache-Control', 'public, max-age=5184000');
-			res.setHeader('Expires', new Date(Date.now() + 5184000000).toUTCString());
-		} else {
-			res.setHeader('Cache-Control', 'public, max-age=0');
-			res.setHeader('Expires', new Date().toUTCString());
-		}
-
-		next();
-	};
 };