[ALSA] hda-codec - Fix build without CONFIG_SND_HDA_GENERIC

Fixed the build error from patch_sigmatel.c when built without
CONFIG_SND_HDA_GENERIC by defining a dummy function to return error.
Also, clean up hda_codec.c by removing unneeded ifdefs (the compiler
will optimize out).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 187533e..ad4cb38 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -626,24 +626,19 @@
 		snd_hda_get_codec_name(codec, bus->card->mixername,
 				       sizeof(bus->card->mixername));
 
-#ifdef CONFIG_SND_HDA_GENERIC
 	if (is_generic_config(codec)) {
 		err = snd_hda_parse_generic_codec(codec);
 		goto patched;
 	}
-#endif
 	if (codec->preset && codec->preset->patch) {
 		err = codec->preset->patch(codec);
 		goto patched;
 	}
 
 	/* call the default parser */
-#ifdef CONFIG_SND_HDA_GENERIC
 	err = snd_hda_parse_generic_codec(codec);
-#else
-	printk(KERN_ERR "hda-codec: No codec parser is available\n");
-	err = -ENODEV;
-#endif
+	if (err < 0)
+		printk(KERN_ERR "hda-codec: No codec parser is available\n");
 
  patched:
 	if (err < 0) {