lkl: remove redundant generic-y page.h

Kbuild reports that page.h is redundant. This commit removes it.

Signed-off-by: Akira Moroo <retrage01@gmail.com>

Author: retrage

arch/lkl/include/asm/Kbuild

@@ -40,7 +40,6 @@ generic-y += mmu.h
 generic-y += mmu_context.h
 generic-y += module.h
 generic-y += msgbuf.h
-generic-y += page.h
 generic-y += param.h
 generic-y += parport.h
 generic-y += pci.h