--- gunicorn/http/message.py    2019-08-22 14:30:52.997742652 +0000
+++ gunicorn/http/message.py    2019-08-22 14:30:36.113849959 +0000
@@ -110,16 +110,6 @@
             if header_length > self.limit_request_field_size > 0:
                 raise LimitRequestHeaders("limit request headers fields size")

-            if name in secure_scheme_headers:
-                secure = value == secure_scheme_headers[name]
-                scheme = "https" if secure else "http"
-                if scheme_header:
-                    if scheme != self.scheme:
-                        raise InvalidSchemeHeaders()
-                else:
-                    scheme_header = True
-                    self.scheme = scheme
-
             headers.append((name, value))

         return headers