ASoC: Remove redundant hw_write initialisation in WM8737

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/codecs/wm8737.c b/sound/soc/codecs/wm8737.c
index 2301338..30c67d0 100644
--- a/sound/soc/codecs/wm8737.c
+++ b/sound/soc/codecs/wm8737.c
@@ -560,7 +560,6 @@
 	struct wm8737_priv *wm8737 = snd_soc_codec_get_drvdata(codec);
 	int ret, i;
 
-	codec->hw_write = (hw_write_t)i2c_master_send;
 	ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8737->control_type);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);