remove scatterlist.h generation from arch Kbuild files

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@fb.com>

arch/mips/include/asm/Kbuild

@@ -11,7 +11,6 @@ generic-y += mutex.h
 generic-y += parport.h
 generic-y += percpu.h
 generic-y += preempt.h
-generic-y += scatterlist.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += serial.h