sh: Kill off duplicate symbol exports on SMP.

synchronize_irq() was being exported twice, kill off the duplicate
export.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/kernel/sh_ksyms.c

@@ -53,6 +53,7 @@ EXPORT_SYMBOL(get_vm_area);
 EXPORT_SYMBOL(__up);
 EXPORT_SYMBOL(__down);
 EXPORT_SYMBOL(__down_interruptible);
+EXPORT_SYMBOL(__down_trylock);
 
 EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__ndelay);
@@ -142,12 +143,6 @@ EXPORT_SYMBOL(__flush_purge_region);
 EXPORT_SYMBOL(clear_user_page);
 #endif
 
-EXPORT_SYMBOL(__down_trylock);
-
-#ifdef CONFIG_SMP
-EXPORT_SYMBOL(synchronize_irq);
-#endif
-
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(csum_partial_copy_generic);
 #ifdef CONFIG_IPV6