Odoo no longer supports python 2, thus some of these helpers can and
have been replaced by python 3 built-ins, therefore there is no need for
them to stay defined.
The removed helpers are:
* izip, imap and ifilter
* unichr, text_type
* implements_to_string, implements_iterator
* string_types, integer_types
* to_native
The python 2 shims have also been removed, and only the python 3 helpers
have been kept, because they can still be usable (i.e. accepting
both bytes and str for functions that can only accept one of the two)
[REM] pyjsparser: remove PY3 shims
They're no longer necessary as Odoo doesn't officially support python 2
anymore.
closesodoo/odoo#28519
Adrian Torres
758382b3a7