ext4: remove redundant check of count

Remove zero check of count which is always non-zero.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230826174712.4059355-7-shikemeng@huaweicloud.comSigned-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/resize.c

@@ -699,7 +699,6 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
 			block = start;
 		}
 
-		if (count) {
 		err = set_flexbg_block_bitmap(sb, handle,
 				flex_gd,
 				EXT4_B2C(sbi, start),
@@ -709,7 +708,6 @@ static int setup_new_flex_group_blocks(struct super_block *sb,
 		if (err)
 			goto out;
 	}
-	}
 
 out:
 	err2 = ext4_journal_stop(handle);