ALSA: line6: Drop voodoo workarounds

If the problem still really remains, we should fix it instead of
papering over it like this...
Tested-by: NChris Rorvick <chris@rorvick.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/usb/line6/capture.c

@@ -297,18 +297,6 @@ static int snd_line6_capture_hw_params(struct snd_pcm_substream *substream,
 	int ret;
 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
 
-	/* -- Florian Demski [FD] */
-	/* don't ask me why, but this fixes the bug on my machine */
-	if (line6pcm == NULL) {
-		if (substream->pcm == NULL)
-			return -ENOMEM;
-		if (substream->pcm->private_data == NULL)
-			return -ENOMEM;
-		substream->private_data = substream->pcm->private_data;
-		line6pcm = snd_pcm_substream_chip(substream);
-	}
-	/* -- [FD] end */
-
 	ret = line6_pcm_acquire(line6pcm, LINE6_BIT_PCM_ALSA_CAPTURE_BUFFER);
 
 	if (ret < 0)

sound/usb/line6/playback.c

@@ -445,18 +445,6 @@ static int snd_line6_playback_hw_params(struct snd_pcm_substream *substream,
 	int ret;
 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
 
-	/* -- Florian Demski [FD] */
-	/* don't ask me why, but this fixes the bug on my machine */
-	if (line6pcm == NULL) {
-		if (substream->pcm == NULL)
-			return -ENOMEM;
-		if (substream->pcm->private_data == NULL)
-			return -ENOMEM;
-		substream->private_data = substream->pcm->private_data;
-		line6pcm = snd_pcm_substream_chip(substream);
-	}
-	/* -- [FD] end */
-
 	ret = line6_pcm_acquire(line6pcm, LINE6_BIT_PCM_ALSA_PLAYBACK_BUFFER);
 
 	if (ret < 0)