[ALSA] Remove unneeded read/write_size fields in proc text ops

Remove unneeded read/write_size fields in proc text ops.
snd_info_set_text_ops() is fixed, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 8505792..d99ed72 100644
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -3338,7 +3338,7 @@
 	if (trident->device == TRIDENT_DEVICE_ID_SI7018)
 		s = "sis7018";
 	if (! snd_card_proc_new(trident->card, s, &entry))
-		snd_info_set_text_ops(entry, trident, 1024, snd_trident_proc_read);
+		snd_info_set_text_ops(entry, trident, snd_trident_proc_read);
 }
 
 static int snd_trident_dev_free(struct snd_device *device)