Revert "rebasing"

This reverts commit a8bf697.

Author: Feiyang1

integration/firestore/gulpfile.js

@@ -63,8 +63,7 @@ function copyTests() {
          */
         /import\s+\* as firebaseExport\s+from\s+('|")[^\1]+firebase_export\1;?/,
         `import * as firebaseExport from '${resolve(
-          __dirname,
-          './firebase_export'
+          __dirname, './firebase_export'
         )}';
         
          if (typeof process === 'undefined') {