staging: r8188eu: remove c2h_evt_clear()

Function c2h_evt_clear() is just a wrapper around rtw_write8().
Remove c2h_evt_clear() and call rtw_write8() directly.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220130111219.6390-2-straube.linux@gmail.com


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