staging: unisys: remove testing proc interfaces from uislib

Several proc interfaces in the uislib module were intended for debug and
testing during initial driver development. They are no longer needed, so
we should remove them from the module.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>