um: header debriding - mem_user.h

get_vm(), add_iomem(), phys_offset() dead since 2004;
init_mem_user() and setup_memory() - since before the initial merge.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/um/include/shared/mem_user.h

@@ -46,16 +46,11 @@ extern int iomem_size;
 
 #define ROUND_4M(n) ((((unsigned long) (n)) + (1 << 22)) & ~((1 << 22) - 1))
 
-extern int init_mem_user(void);
-extern void setup_memory(void *entry);
 extern unsigned long find_iomem(char *driver, unsigned long *len_out);
 extern void mem_total_pages(unsigned long physmem, unsigned long iomem,
 		     unsigned long highmem);
-extern unsigned long get_vm(unsigned long len);
 extern void setup_physmem(unsigned long start, unsigned long usable,
 			  unsigned long len, unsigned long long highmem);
-extern void add_iomem(char *name, int fd, unsigned long size);
-extern unsigned long phys_offset(unsigned long phys);
 extern void map_memory(unsigned long virt, unsigned long phys,
 		       unsigned long len, int r, int w, int x);