ext4: use ext4_map_query_blocks() in ext4_map_blocks()

The blocks map querying logic in ext4_map_blocks() are the same as
ext4_map_query_blocks(), so switch to directly use it.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20240813123452.2824659-9-yi.zhang@huaweicloud.com


Signed-off-by: Theodore Ts'o <tytso@mit.edu>