ASoC: rt298: fix remove unnedded clk setting

The bit is no longer present. So remove it.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt298.c

@@ -854,8 +854,6 @@ static int rt298_set_dai_sysclk(struct snd_soc_dai *dai,
 	} else {
 		snd_soc_update_bits(codec,
 			RT298_I2S_CTRL2, 0x0100, 0x0100);
-		snd_soc_update_bits(codec,
-			RT298_PLL_CTRL, 0x4, 0x4);
 		snd_soc_update_bits(codec,
 			RT298_PLL_CTRL1, 0x20, 0x0);
 	}