Use os.renames() in remove() to auto-create subdirectories.

Bug: 1415507
Change-Id: Ie52123dc0844639116b55bc7f6a2734aaf7df33e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4378417
Reviewed-by: Gavin Mak <gavinmak@google.com>
Commit-Queue: Gavin Mak <gavinmak@google.com>
Auto-Submit: Joanna Wang <jojwang@chromium.org>

recipes/recipe_modules/bot_update/resources/bot_update.py

@@ -366,8 +366,8 @@ def remove(target, cleanup_dir):
       allfiles = os.listdir(target)
       for f in allfiles:
         target_path = os.path.join(target, f)
-        dst_path = os.path.join(destination, f)
-        os.rename(target_path, dst_path)
+        dst_path = os.path.join(dest, f)
+        os.renames(target_path, dst_path)
   except Exception as e:
     print('Error renaming %s to %s: %s' % (target, dest, str(e)))
     raise