removed extra async/await

lib/util/importer.js

@@ -26,9 +26,9 @@ module.exports = crowi => {
    * Import page data from esa to GROWI
    */
   importer.importDataFromEsa = user => {
-    return new Promise(async(resolve, reject) => {
+    return new Promise((resolve, reject) => {
       const firstPage = 1;
-      const errors = await importPostsFromEsa(firstPage, user, []);
+      const errors = importPostsFromEsa(firstPage, user, []);
 
       resolve(errors);
     });