staging: r8188eu: remove dump_ies()

Function dump_ies() is not used, remove it. It is the only user of
the functions dump_{wps,p2p}_ie(), remove these as well.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210922200420.9693-32-straube.linux@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>