asm-generic: page.h: Remove useless get_user_page and free_user_page

They are not symmetric with each other, neither are used in real world
(can not be found by grep command in source code root directory), so
remove them.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/m68k/include/asm/page_mm.h

@@ -6,9 +6,6 @@
 #include <linux/compiler.h>
 #include <asm/module.h>
 
-#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)
-#define free_user_page(page, addr)	free_page(addr)
-
 /*
  * We don't need to check for alignment etc.
  */

arch/m68k/include/asm/page_no.h

@@ -6,9 +6,6 @@
 extern unsigned long memory_start;
 extern unsigned long memory_end;
 
-#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)
-#define free_user_page(page, addr)	free_page(addr)
-
 #define clear_page(page)	memset((page), 0, PAGE_SIZE)
 #define copy_page(to,from)	memcpy((to), (from), PAGE_SIZE)