SPARC/m68k: Remove sun_setup_serial references, which is already gone.

arch/m68k/kernel/setup.c

@@ -39,7 +39,6 @@
 #endif
 #ifdef CONFIG_SUN3X
 #include <asm/dvma.h>
-extern void sun_serial_setup(void);
 #endif
 
 unsigned long m68k_machtype;

arch/sparc/kernel/setup.c

@@ -233,7 +233,6 @@ extern char cputypval;
 extern unsigned long start, end;
 extern void panic_setup(char *, int *);
 extern void srmmu_end_memory(unsigned long, unsigned long *);
-extern void sun_serial_setup(void);
 
 extern unsigned short root_flags;
 extern unsigned short root_dev;

arch/sparc64/mm/init.c

@@ -1423,7 +1423,6 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
 
 /* paging_init() sets up the page tables */
 
-extern void sun_serial_setup(void);
 extern void cheetah_ecache_flush_init(void);
 
 static unsigned long last_valid_pfn;
@@ -1548,15 +1547,6 @@ void __init paging_init(void)
 
 	inherit_locked_prom_mappings(1);
 
-#ifdef CONFIG_SUN_SERIAL
-	/* This does not logically belong here, but we need to call it at
-	 * the moment we are able to use the bootmem allocator. This _has_
-	 * to be done after the prom_mappings above so since
-	 * __alloc_bootmem() doesn't work correctly until then.
-	 */
-	sun_serial_setup();
-#endif
-
 	/* We only created DTLB mapping of this stuff. */
 	spitfire_flush_dtlb_nucleus_page(alias_base);
 	if (second_alias_page)