ALSA: tea575x: remove unused card from struct

struct snd_card *card is present in struct snd_tea575x but never used.
Remove it.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/tea575x-tuner.h

@@ -42,7 +42,6 @@ struct snd_tea575x_ops {
 };
 
 struct snd_tea575x {
-	struct snd_card *card;
 	struct video_device *vd;	/* video device */
 	bool tea5759;			/* 5759 chip is present */
 	bool mute;			/* Device is muted? */

sound/pci/es1968.c

@@ -2793,7 +2793,6 @@ static int __devinit snd_es1968_create(struct snd_card *card,
 	snd_card_set_dev(card, &pci->dev);
 
 #ifdef CONFIG_SND_ES1968_RADIO
-	chip->tea.card = card;
 	chip->tea.private_data = chip;
 	chip->tea.ops = &snd_es1968_tea_ops;
 	if (!snd_tea575x_init(&chip->tea))

sound/pci/fm801.c

@@ -1230,7 +1230,6 @@ static int __devinit snd_fm801_create(struct snd_card *card,
 	snd_card_set_dev(card, &pci->dev);
 
 #ifdef TEA575X_RADIO
-	chip->tea.card = card;
 	chip->tea.private_data = chip;
 	chip->tea.ops = &snd_fm801_tea_ops;
 	if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 &&