Revert "util: python: modules(): Sort modules for docstring"

Different classes output on Python 3.8

This reverts commit 9112a67.

dffml/util/python.py

@@ -59,22 +59,11 @@ def modules(
     ...     return (root / "dom") in path.parents or path.name.startswith("__")
     ...
     >>> # Print the first module
-    >>> for import_name, module in sorted(
-    ...         dffml.modules(root, package_name, skip=skip),
-    ...         key=lambda import_name_and_module: import_name_and_module[0],
-    ...     ):
-    ...     print(import_name, sorted(module.__dict__.keys())[0])
+    >>> for import_name, module in dffml.modules(root, package_name, skip=skip):
+    ...     print(import_name)
+    ...     break
     ...
-    xml.etree.ElementInclude ElementTree
-    xml.etree.ElementPath _SelectorContext
-    xml.etree.ElementTree Comment
-    xml.etree.cElementTree Comment
-    xml.parsers.expat EXPAT_VERSION
-    xml.sax._exceptions SAXException
-    xml.sax.expatreader AttributesImpl
-    xml.sax.handler ContentHandler
-    xml.sax.saxutils XMLFilterBase
-    xml.sax.xmlreader AttributesImpl
+    xml.sax.expatreader
     """
     for path in pathlib.Path(root).rglob("*.py"):
         # Figure out name