vendor/emmet.js
function(fn) {
			this._list = _.without(this._list, _.find(this._list, function(item) {
				return item.fn === fn;
			}));
		}
function(fn) {
			this._list = _.without(this._list, _.find(this._list, function(item) {
				return item.fn === fn;
			}));
		}
Removes handler from list
@param {Function} fn