ALSA: ca0106: Fix/cleanup ifdef CONFIG_PROC_FS

Build ca0106_proc.o conditionally to drop unneeded ifdef.
Some are replaced with the new CONFIG_SND_PROC_FS.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ca0106/Makefile

-snd-ca0106-objs := ca0106_main.o ca0106_proc.o ca0106_mixer.o ca_midi.o
+snd-ca0106-objs := ca0106_main.o ca0106_mixer.o ca_midi.o
+snd-ca0106-$(CONFIG_SND_PROC_FS) += ca0106_proc.o
 
 obj-$(CONFIG_SND_CA0106) += snd-ca0106.o

sound/pci/ca0106/ca0106_main.c

@@ -1885,7 +1885,7 @@ static int snd_ca0106_probe(struct pci_dev *pci,
 		goto error;
 	dev_dbg(card->dev, " done.\n");
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_SND_PROC_FS
 	snd_ca0106_proc_init(chip);
 #endif
 

sound/pci/ca0106/ca0106_proc.c

@@ -75,8 +75,6 @@
 #include "ca0106.h"
 
 
-#ifdef CONFIG_PROC_FS
-
 struct snd_ca0106_category_str {
 	int val;
 	const char *name;
@@ -453,5 +451,3 @@ int snd_ca0106_proc_init(struct snd_ca0106 *emu)
 		snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
 	return 0;
 }
-
-#endif /* CONFIG_PROC_FS */