[ALSA] remove unused snd_minor.name field

Drop the snd_minor structure's name field that was just a helper for
devfs device deregistration.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

include/sound/core.h

@@ -188,8 +188,6 @@ struct snd_minor {
 	int device;			/* device number */
 	const struct file_operations *f_ops;	/* file operations */
 	void *private_data;		/* private data for f_ops->open */
-	char name[0];			/* device name (keep at the end of
-								structure) */
 };
 
 /* sound.c */