Re-enable the max-len ESLint rule. (#5265)

packages/babel-plugin-transform-es2015-parameters/src/default.js

@@ -1,5 +1,3 @@
-/* eslint max-len: 0 */
-
 import getFunctionArity from "babel-helper-get-function-arity";
 import callDelegate from "babel-helper-call-delegate";
 import template from "babel-template";

packages/babel-plugin-transform-es2015-parameters/src/rest.js

@@ -1,5 +1,3 @@
-/* eslint indent: 0 */
-
 import template from "babel-template";
 import * as t from "babel-types";