Update setup.py

Author: tonisvain

setup.py

@@ -60,10 +60,8 @@ def get_version(*file_paths):
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Framework :: Django",
-        "Framework :: Django :: 2",
         "Framework :: Django :: 2.1",
         "Framework :: Django :: 2.2",
-        "Framework :: Django :: 3",
         "Framework :: Django :: 3.0",
         "Framework :: Django :: 3.1",
         "Framework :: Django :: 3.2",