feat(eslint): remove deprecated no-return-await (#94)

Author: mrmckeb

eslint/rules/best-practice.js

@@ -162,12 +162,6 @@ module.exports = {
      * 🚫 Not fixable - https://eslint.org/docs/rules/no-return-assign
      */
     'no-return-assign': 'error',
-    /**
-     * Disallows unnecessary `return await`.
-     *
-     * 🚫 Not fixable - https://eslint.org/docs/rules/no-return-await
-     */
-    'no-return-await': 'error',
     /**
      * Disallow use of `javascript:` urls.
      *