Remove unused method

Method uses feature of Django > 2, so the apikeyclient cannot
be used for the legacy Django projects that are still using Django 2.

Luckily, the method was not used anymore, so could be removed.

apikeyclient/pyproject.toml

@@ -3,7 +3,7 @@ requires = ["setuptools", "wheel"]
 
 [project]
 name = "datadiensten-apikeyclient"
-version = "0.3.4"
+version = "0.3.5"
 description = "Client for Datadiensten apikeyserv"
 dependencies = ['pause>=0.3', 'requests', 'PyJWT[crypto]==2.8.0', 'build']
 

apikeyclient/src/apikeyclient/__init__.py

@@ -4,8 +4,7 @@
 import threading
 
 from django.conf import settings
-from django.http import HttpRequest, HttpResponse, JsonResponse
-from django.http.request import MediaType
+from django.http import HttpRequest, JsonResponse
 import jwt
 import pause
 import requests
@@ -62,12 +61,6 @@ def __call__(self, request: HttpRequest):
                 return JsonResponse({"message": "invalid API key"}, status=HTTPStatus.BAD_REQUEST)
         return self._get_response(request)
 
-    def _has_explicit_html_media_type(self, media_types: list[MediaType]):
-        for media_type in media_types:
-            if media_type.main_type == "text" and media_type.sub_type == "html":
-                return True
-        return False
-
     def _fetch_client(self):
         apikey_localkeys = getattr(settings, "APIKEY_LOCALKEYS", None)
         if apikey_localkeys is not None: