ASoC: wm8741: Remove unused wm8741_suspend define

This driver has no suspend callback.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/codecs/wm8741.c

@@ -413,7 +413,6 @@ static int wm8741_resume(struct snd_soc_codec *codec)
 	return 0;
 }
 #else
-#define wm8741_suspend NULL
 #define wm8741_resume NULL
 #endif