Get rid of setup.cfg

Then sdist doesn't change when uncommenting the comments in this file.
It seems useless as it is.

Author: DimitriPapadopoulos

setup.cfg

@@ -1,5 +1,5 @@
-# [options.package_data]
-# neurodocker =
-#     templates/*.yaml
-#     reproenv/schemas/*.json
-#     cli/minify/_trace.sh
+[options.package_data]
+neurodocker =
+    templates/*.yaml
+    reproenv/schemas/*.json
+    cli/minify/_trace.sh