There's no need to explicitly set PYPI_ARCHIVE_NAME and S when
PYPI_PACKAGE is set correctly.
(From OE-Core rev: e757a0595602dafcd95a988fb123a8fdb3d4d82b)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>