f2fs: drop unused sbi parameter from f2fs_in_warm_node_list() The sbi parameter in f2fs_in_warm_node_list() is not used. Remove it to simplify the function. Signed-off-by: Yongpeng Yang <yangyongpeng@xiaomi.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>