maple_tree: arange64 node is not a leaf node

mt_dump_arange64() only applies to an entry whose type is maple_arange_64,
in which mte_is_leaf() must return false.

Since mte_is_leaf() here is always false, we can remove this condition
check.

Link: https://lkml.kernel.org/r/20240826012422.29935-1-richard.weiyang@gmail.comSigned-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

lib/maple_tree.c

@@ -7203,7 +7203,6 @@ static void mt_dump_arange64(const struct maple_tree *mt, void *entry,
 	enum mt_dump_format format)
 {
 	struct maple_arange_64 *node = &mte_to_node(entry)->ma64;
-	bool leaf = mte_is_leaf(entry);
 	unsigned long first = min;
 	int i;
 
@@ -7237,10 +7236,7 @@ static void mt_dump_arange64(const struct maple_tree *mt, void *entry,
 			break;
 		if (last == 0 && i > 0)
 			break;
-		if (leaf)
-			mt_dump_entry(mt_slot(mt, node->slot, i),
-					first, last, depth + 1, format);
-		else if (node->slot[i])
+		if (node->slot[i])
 			mt_dump_node(mt, mt_slot(mt, node->slot, i),
 					first, last, depth + 1, format);