ASoC: mediatek: remove unnecessary check of clk_disable_unprepare

Because clk_disable_unprepare already checked NULL clock
parameter, so the additional checks are unnecessary, just remove them.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn>
Link: https://lore.kernel.org/r/20220602071809.278134-1-chi.minghao@zte.com.cnSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/mt8173/mt8173-afe-pcm.c

@@ -286,10 +286,8 @@ static int mt8173_afe_dais_set_clks(struct mtk_base_afe *afe,
 static void mt8173_afe_dais_disable_clks(struct mtk_base_afe *afe,
 					 struct clk *m_ck, struct clk *b_ck)
 {
-	if (m_ck)
-		clk_disable_unprepare(m_ck);
-	if (b_ck)
-		clk_disable_unprepare(b_ck);
+	clk_disable_unprepare(m_ck);
+	clk_disable_unprepare(b_ck);
 }
 
 static int mt8173_afe_i2s_startup(struct snd_pcm_substream *substream,