Remove reference to CHANGELOG.rst

We don't maintain a changelog for this package.

setup.cfg

@@ -3,11 +3,10 @@ name = nublado2
 description = Nublado v2.
 author = Association of Universities for Research in Astronomy, Inc. (AURA)
 author_email = [email protected]
-long_description = file: README.rst, CHANGELOG.rst, LICENSE
+long_description = file: README.rst, LICENSE
 long_description_content_type = text/x-rst
 url = https://github.com/lsst-sqre/nublado2
 project_urls =
-    Change log = https://github.com/lsst-sqre/nublado2/master/blob/CHANGELOG.rst
     Source code = https://github.com/lsst-sqre/nublado2
     Issue tracker = https://github.com/lsst-sqre/nublado2/issues
 classifiers =
@@ -17,6 +16,7 @@ classifiers =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
+    Programming Language :: Python :: 3.10
     Natural Language :: English
     Operating System :: POSIX
 keywords =