Vendor requests.

recipe_engine/third_party/requests/requests/packages/urllib3/packages/backports/makefile.py

Index: recipe_engine/third_party/requests/requests/packages/urllib3/packages/backports/makefile.py
diff --git a/recipe_engine/third_party/requests/requests/packages/urllib3/packages/backports/makefile.py b/recipe_engine/third_party/requests/requests/packages/urllib3/packages/backports/makefile.py
deleted file mode 100644
index 75b80dcf8465cc6d2ce5692eaaa62b60555db60e..0000000000000000000000000000000000000000
--- a/recipe_engine/third_party/requests/requests/packages/urllib3/packages/backports/makefile.py
+++ /dev/null
@@ -1,53 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-backports.makefile
-~~~~~~~~~~~~~~~~~~
-
-Backports the Python 3 ``socket.makefile`` method for use with anything that
-wants to create a "fake" socket object.
-"""
-import io
-
-from socket import SocketIO
-
-
-def backport_makefile(self, mode="r", buffering=None, encoding=None,
-                      errors=None, newline=None):
-    """
-    Backport of ``socket.makefile`` from Python 3.5.
-    """
-    if not set(mode) <= set(["r", "w", "b"]):
-        raise ValueError(
-            "invalid mode %r (only r, w, b allowed)" % (mode,)
-        )
-    writing = "w" in mode
-    reading = "r" in mode or not writing
-    assert reading or writing
-    binary = "b" in mode
-    rawmode = ""
-    if reading:
-        rawmode += "r"
-    if writing:
-        rawmode += "w"
-    raw = SocketIO(self, rawmode)
-    self._makefile_refs += 1
-    if buffering is None:
-        buffering = -1
-    if buffering < 0:
-        buffering = io.DEFAULT_BUFFER_SIZE
-    if buffering == 0:
-        if not binary:
-            raise ValueError("unbuffered streams must be binary")
-        return raw
-    if reading and writing:
-        buffer = io.BufferedRWPair(raw, raw, buffering)
-    elif reading:
-        buffer = io.BufferedReader(raw, buffering)
-    else:
-        assert writing
-        buffer = io.BufferedWriter(raw, buffering)
-    if binary:
-        return buffer
-    text = io.TextIOWrapper(buffer, encoding, errors, newline)
-    text.mode = mode
-    return text