Remove remove_entity_headers()

sanic/helpers.py

@@ -122,25 +122,6 @@ def is_hop_by_hop_header(header):
     return header.lower() in _HOP_BY_HOP_HEADERS
 
 
-def remove_entity_headers(headers, allowed=("content-location", "expires")):
-    """
-    Removes all the entity headers present in the headers given.
-    According to RFC 2616 Section 10.3.5,
-    Content-Location and Expires are allowed as for the
-    "strong cache validator".
-    https://tools.ietf.org/html/rfc2616#section-10.3.5
-
-    returns the headers without the entity headers
-    """
-    allowed = set([h.lower() for h in allowed])
-    headers = {
-        header: value
-        for header, value in headers.items()
-        if not is_entity_header(header) or header.lower() in allowed
-    }
-    return headers
-
-
 def import_string(module_name, package=None):
     """
     import a module or class by string path.