staging: unisys: remove functions made redundant in uislib.c

The patches to move proc files have made the functions
uislib_proc_read_writeonly() and stop_chipset() redundant. Remove them.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>