ASoC: ab8500-codec: remove useless structure

Cppcheck warnings:

sound/soc/codecs/ab8500-codec.c:117:20: style: struct member 'ab8500_codec_drvdata_dbg::vaud' is never used. [unusedStructMember]
 struct regulator *vaud;
                   ^
sound/soc/codecs/ab8500-codec.c:118:20: style: struct member 'ab8500_codec_drvdata_dbg::vamic1' is never used. [unusedStructMember]
 struct regulator *vamic1;
                   ^
sound/soc/codecs/ab8500-codec.c:119:20: style: struct member 'ab8500_codec_drvdata_dbg::vamic2' is never used. [unusedStructMember]
 struct regulator *vamic2;
                   ^
sound/soc/codecs/ab8500-codec.c:120:20: style: struct member 'ab8500_codec_drvdata_dbg::vdmic' is never used. [unusedStructMember]
 struct regulator *vdmic;
                   ^

The structure is never used, remove.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210312182246.5153-2-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/ab8500-codec.c

@@ -113,13 +113,6 @@ enum amic_idx {
 	AMIC_IDX_2
 };
 
-struct ab8500_codec_drvdata_dbg {
-	struct regulator *vaud;
-	struct regulator *vamic1;
-	struct regulator *vamic2;
-	struct regulator *vdmic;
-};
-
 /* Private data for AB8500 device-driver */
 struct ab8500_codec_drvdata {
 	struct regmap *regmap;