code: def remove_all_bucket_notification(self, bucket_name):
          
          is_valid_bucket_name(bucket_name)
  
          content_bytes = xml_marshal_bucket_notifications({})
          headers = {
              'Content-Length': str(len(content_bytes)),
              'Content-Md5': get_md5_base64digest(content_bytes)
          }
          content_sha256_hex = get_sha256_hexdigest(content_bytes)
          self._url_open(
              'PUT',
              bucket_name=bucket_name,
              query={"notification": ""},
              headers=headers,
              body=content_bytes,
              content_sha256=content_sha256_hex
          )
docs: Removes all bucket notification configs configured
          previously, this call disable event notifications
          on a bucket. This operation cannot be undone, to
          set notifications again you should use
          ``set_bucket_notification``
  
          :param bucket_name: Bucket name.