Remove deprecated ChunkedTransferMiddleware (#4431)

scrapy/downloadermiddlewares/chunked.py

@@ -1,21 +0,0 @@
-import warnings
-
-from scrapy.exceptions import ScrapyDeprecationWarning
-from scrapy.utils.http import decode_chunked_transfer
-
-
-warnings.warn("Module `scrapy.downloadermiddlewares.chunked` is deprecated, "
-              "chunked transfers are supported by default.",
-              ScrapyDeprecationWarning, stacklevel=2)
-
-
-class ChunkedTransferMiddleware(object):
-    """This middleware adds support for chunked transfer encoding, as
-    documented in: https://en.wikipedia.org/wiki/Chunked_transfer_encoding
-    """
-
-    def process_response(self, request, response, spider):
-        if response.headers.get('Transfer-Encoding') == 'chunked':
-            body = decode_chunked_transfer(response.body)
-            return response.replace(body=body)
-        return response