Remove traces of Py_USING_UNICODE and Unicode-specific conditionals in configure.
Rename --enable-unicode to --with-wide-unicode; the default is still not wide.
diff --git a/Doc/library/codecs.rst b/Doc/library/codecs.rst
index 72d6734..ae79049 100644
--- a/Doc/library/codecs.rst
+++ b/Doc/library/codecs.rst
@@ -751,7 +751,7 @@
Unicode strings are stored internally as sequences of codepoints (to be precise
as :ctype:`Py_UNICODE` arrays). Depending on the way Python is compiled (either
-via :option:`--enable-unicode=ucs2` or :option:`--enable-unicode=ucs4`, with the
+via :option:`--without-wide-unicode` or :option:`--with-wide-unicode`, with the
former being the default) :ctype:`Py_UNICODE` is either a 16-bit or 32-bit data
type. Once a Unicode object is used outside of CPU and memory, CPU endianness
and how these arrays are stored as bytes become an issue. Transforming a