py/objfun.h: Remove obsolete comments about entries in extra_args.
py/objfun.h: Remove obsolete comments about entries in extra_args.

These two entries were removed in 049a7a81531a67e068d926ad50260578fb79f94c

Signed-off-by: Damien George <99e6b749acbfbe2a596df99e91d24d6e1fdbee00@micropython.org>

adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython,adafruit/circuitpython