ASoC: mediatek: mt8192: remove redundant null pointer check before of_node_put

of_node_put() has taken the null pointer check into account. So it is safe
to remove the duplicated check before of_node_put().

Signed-off-by: Chen Ni <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c

···
 err_headset_codec:
 	of_node_put(speaker_codec);
 err_speaker_codec:
-	if (hdmi_codec)
-		of_node_put(hdmi_codec);
-
+	of_node_put(hdmi_codec);
 	return ret;
 }