Refs #32375 -- Changed default sitemap protocol to https.

Per deprecation timeline.

django/contrib/sitemaps/__init__.py

@@ -1,4 +1,3 @@
-import warnings
 from urllib.parse import urlencode
 from urllib.request import urlopen
 
@@ -8,7 +7,6 @@ from django.core import paginator
 from django.core.exceptions import ImproperlyConfigured
 from django.urls import NoReverseMatch, reverse
 from django.utils import translation
-from django.utils.deprecation import RemovedInDjango50Warning
 
 PING_URL = "https://www.google.com/webmasters/tools/ping"
 
@@ -133,17 +131,7 @@ class Sitemap:
 
     def get_protocol(self, protocol=None):
         # Determine protocol
-        if self.protocol is None and protocol is None:
-            warnings.warn(
-                "The default sitemap protocol will be changed from 'http' to "
-                "'https' in Django 5.0. Set Sitemap.protocol to silence this "
-                "warning.",
-                category=RemovedInDjango50Warning,
-                stacklevel=2,
-            )
-        # RemovedInDjango50Warning: when the deprecation ends, replace 'http'
-        # with 'https'.
-        return self.protocol or protocol or "http"
+        return self.protocol or protocol or "https"
 
     def get_domain(self, site=None):
         # Determine domain