Update gcsfs/core.py

Co-authored-by: Sam Levang <39069044+slevang@users.noreply.github.com>

gcsfs/core.py

@@ -1185,7 +1185,7 @@ async def _rm_files(self, paths, batchsize=20):
  # See https://cloud.google.com/storage/docs/batch
  for retry in range(1, 6):
  remaining = []
- for chunk in _chunks(paths, 20):
+ for chunk in _chunks(paths, batchsize):
  parts = []
  for i, p in enumerate(chunk):
  bucket, key, generation = self.split_path(p)