sh: Kill off duplicate remove_memory() definition.

Use the generic remove_memory() provided by mm/memory_hotplug.c instead.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/mm/init.c

@@ -321,21 +321,4 @@ int memory_add_physaddr_to_nid(u64 addr)
 }
 EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
 #endif
-
-#ifdef CONFIG_MEMORY_HOTREMOVE
-int remove_memory(u64 start, u64 size)
-{
-	unsigned long start_pfn = start >> PAGE_SHIFT;
-	unsigned long end_pfn = start_pfn + (size >> PAGE_SHIFT);
-	int ret;
-
-	ret = offline_pages(start_pfn, end_pfn, 120 * HZ);
-	if (unlikely(ret))
-		printk("%s: Failed, offline_pages() == %d\n", __func__, ret);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(remove_memory);
-#endif
-
 #endif /* CONFIG_MEMORY_HOTPLUG */