⚰️ Remove obsolete shim

The import shim was required for Django versions pre 3.0,
but this library requires at least Django 3.2.

cookie_consent/compat.py

@@ -1,13 +1,8 @@
-try:
-    from django.utils.http import url_has_allowed_host_and_scheme
-except ImportError:  # django < 3.0
-    from django.utils.http import is_safe_url as url_has_allowed_host_and_scheme
-
 try:  # django >= 4.1
     from django.contrib.auth.views import RedirectURLMixin
 except ImportError:
     from django.contrib.auth.views import (
         SuccessURLAllowedHostsMixin as RedirectURLMixin,
     )
 
-__all__ = ["url_has_allowed_host_and_scheme", "RedirectURLMixin"]
+__all__ = ["RedirectURLMixin"]

cookie_consent/views.py

@@ -3,9 +3,10 @@
 from django.http import HttpRequest, HttpResponse, HttpResponseRedirect, JsonResponse
 from django.middleware.csrf import get_token as get_csrf_token
 from django.urls import reverse
+from django.utils.http import url_has_allowed_host_and_scheme
 from django.views.generic import ListView, View
 
-from .compat import RedirectURLMixin, url_has_allowed_host_and_scheme
+from .compat import RedirectURLMixin
 from .models import CookieGroup
 from .util import (
     accept_cookies,