Revert "Enable new gradle for all bots"

This reverts commit 031e90603ac6493324c07cd8d43d25f09098d029.

Reason for revert: rico asked me to revert

Change-Id: I32f3135d404c69445ea30831cc55e3b95e7e33ed
diff --git a/tools/test.py b/tools/test.py
index 4e518d7..89b4ee5 100755
--- a/tools/test.py
+++ b/tools/test.py
@@ -203,7 +203,7 @@
                     default=False, action='store_true')
   result.add_option('--new-gradle',
                     help='Specify to run in the new gradle setup',
-                    default=True, action='store_true')
+                    default=False, action='store_true')
   return result.parse_args()
 
 def has_failures(classes_file):