[Python-Dev] Nuking wstr [Re: How can we use 48bit pointer safely?]

[INADA Naoki]

Some of APIs are stated as "Deprecated since version 3.3, will be
removed in version 4.0:".

e.g. https://docs.python.org/3/c-api/unicode.html#c.PyUnicode_AS_UNICODE

So we will remove them (and wstr) at Python 4.0.