ASoC: nau8825: remove unnecessary unlikely()

WARN_ON() already contains an unlikely(), so it's not necessary to use
unlikely.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/nau8825.c

@@ -424,10 +424,8 @@ static u32 nau8825_xtalk_sidetone(u32 sig_org, u32 sig_cros)
 {
 	u32 gain, sidetone;
 
-	if (unlikely(sig_org == 0) || unlikely(sig_cros == 0)) {
-		WARN_ON(1);
+	if (WARN_ON(sig_org == 0 || sig_cros == 0))
 		return 0;
-	}
 
 	sig_org = nau8825_intlog10_dec3(sig_org);
 	sig_cros = nau8825_intlog10_dec3(sig_cros);