ASoC: Remove dead code and labels

Remove the dead code and labels "card_err" in the error paths of
some codec drivers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/soc/codecs/ad1836.c

@@ -387,11 +387,6 @@ static int ad1836_probe(struct platform_device *pdev)
 	snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
 	snd_soc_dapm_new_widgets(codec);
 
-	return ret;
-
-card_err:
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
 pcm_err:
 	return ret;
 }

sound/soc/codecs/ad1938.c

@@ -596,11 +596,6 @@ static int ad1938_probe(struct platform_device *pdev)
 
 	ad1938_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	return ret;
-
-card_err:
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
 pcm_err:
 	return ret;
 }

sound/soc/codecs/cx20442.c

@@ -355,11 +355,6 @@ static int cx20442_codec_probe(struct platform_device *pdev)
 
 	cx20442_add_widgets(codec);
 
-	return ret;
-
-card_err:
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
 pcm_err:
 	return ret;
 }

sound/soc/codecs/wm8400.c

@@ -1400,11 +1400,6 @@ static int wm8400_probe(struct platform_device *pdev)
 	wm8400_add_controls(codec);
 	wm8400_add_widgets(codec);
 
-	return ret;
-
-card_err:
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
 pcm_err:
 	return ret;
 }

sound/soc/codecs/wm8900.c

@@ -1353,11 +1353,6 @@ static int wm8900_probe(struct platform_device *pdev)
 				ARRAY_SIZE(wm8900_snd_controls));
 	wm8900_add_widgets(codec);
 
-	return ret;
-
-card_err:
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
 pcm_err:
 	return ret;
 }