ASoC: wm2200: remove unused structure

cppcheck complains about some members not being used, but it's really
the entire structure that is never used anywhere.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210311004332.120901-4-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm2200.c

@@ -72,13 +72,6 @@ static const char *wm2200_core_supply_names[WM2200_NUM_CORE_SUPPLIES] = {
 	"LDOVDD",
 };
 
-struct wm2200_fll {
-	int fref;
-	int fout;
-	int src;
-	struct completion lock;
-};
-
 /* codec private data */
 struct wm2200_priv {
 	struct wm_adsp dsp[2];