Refs #15619 -- Removed support for logging out via GET requests.

Per deprecation timeline.

django/contrib/auth/views.py

@@ -1,4 +1,3 @@
-import warnings
 from urllib.parse import urlparse, urlunparse
 
 from django.conf import settings
@@ -22,7 +21,6 @@ from django.http import HttpResponseRedirect, QueryDict
 from django.shortcuts import resolve_url
 from django.urls import reverse_lazy
 from django.utils.decorators import method_decorator
-from django.utils.deprecation import RemovedInDjango50Warning
 from django.utils.http import url_has_allowed_host_and_scheme, urlsafe_base64_decode
 from django.utils.translation import gettext_lazy as _
 from django.views.decorators.cache import never_cache
@@ -128,25 +126,15 @@ class LogoutView(RedirectURLMixin, TemplateView):
     Log out the user and display the 'You are logged out' message.
     """
 
-    # RemovedInDjango50Warning: when the deprecation ends, remove "get" and
-    # "head" from http_method_names.
-    http_method_names = ["get", "head", "post", "options"]
+    http_method_names = ["post", "options"]
     template_name = "registration/logged_out.html"
     extra_context = None
 
-    # RemovedInDjango50Warning: when the deprecation ends, move
-    # @method_decorator(csrf_protect) from post() to dispatch().
+    @method_decorator(csrf_protect)
     @method_decorator(never_cache)
     def dispatch(self, request, *args, **kwargs):
-        if request.method.lower() == "get":
-            warnings.warn(
-                "Log out via GET requests is deprecated and will be removed in Django "
-                "5.0. Use POST requests for logging out.",
-                RemovedInDjango50Warning,
-            )
         return super().dispatch(request, *args, **kwargs)
 
-    @method_decorator(csrf_protect)
     def post(self, request, *args, **kwargs):
         """Logout may be done via POST."""
         auth_logout(request)
@@ -156,9 +144,6 @@ class LogoutView(RedirectURLMixin, TemplateView):
             return HttpResponseRedirect(redirect_to)
         return super().get(request, *args, **kwargs)
 
-    # RemovedInDjango50Warning.
-    get = post
-
     def get_default_redirect_url(self):
         """Return the default redirect URL."""
         if self.next_page: