isofs: remove redundant continue statement

The continue statement in the while-loop has no effect,
remove it.

Addresses-Coverity: ("Continue has no effect")
Link: https://lore.kernel.org/r/20210617120837.11994-1-colin.king@canonical.comSigned-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/isofs/dir.c

@@ -235,8 +235,6 @@ static int do_isofs_readdir(struct inode *inode, struct file *file,
 				break;
 		}
 		ctx->pos += de_len;
-
-		continue;
 	}
 	if (bh)
 		brelse(bh);