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/[e-mail]
Signed-off-by: Colin Ian King <[e-mail]>
Signed-off-by: Jan Kara <[e-mail]>

fs/isofs/dir.c

···
 				break;
 		}
 		ctx->pos += de_len;
-
-		continue;
 	}
 	if (bh)
 		brelse(bh);