Remove wrong classifier

Author: fsbraun

setup.py

@@ -47,7 +47,6 @@
     "Framework :: Django CMS :: 3.10",
     "Framework :: Django CMS :: 3.11",
     "Framework :: Django CMS :: 4.0",
-    "Framework :: Django CMS :: 4.1",
     "Topic :: Internet :: WWW/HTTP",
     "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
     "Topic :: Software Development",