staging: olpc_dcon: remove noinit module variable

This came from Jordan's original 2007 gxfb_dcon commit.  I've never
seen or heard of it actually being used.  Presumably it was once
useful for skipping hardware initialization when reloading the module
over and over during driver development..

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>