ALSA: hda: Drop NULL check for snd_ctl_remove()

Since snd_ctl_remove() accepts the NULL kcontrol argument now, we can
drop the check in the caller side.

Link: https://lore.kernel.org/20240617100529.6667-5-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_cs_dsp_ctl.c

@@ -207,7 +207,7 @@ void hda_cs_dsp_control_remove(struct cs_dsp_coeff_ctl *cs_ctl)
 	struct hda_cs_dsp_coeff_ctl *ctl = cs_ctl->priv;
 
 	/* ctl and kctl may already have been removed by ALSA private_free */
-	if (ctl && ctl->kctl)
+	if (ctl)
 		snd_ctl_remove(ctl->card, ctl->kctl);
 }
 EXPORT_SYMBOL_NS_GPL(hda_cs_dsp_control_remove, SND_HDA_CS_DSP_CONTROLS);

sound/pci/hda/tas2781_hda_i2c.c

@@ -597,17 +597,12 @@ static void tas2781_hda_remove_controls(struct tas2781_hda *tas_hda)
 {
 	struct hda_codec *codec = tas_hda->priv->codec;
 
-	if (tas_hda->dsp_prog_ctl)
 	snd_ctl_remove(codec->card, tas_hda->dsp_prog_ctl);
-
-	if (tas_hda->dsp_conf_ctl)
 	snd_ctl_remove(codec->card, tas_hda->dsp_conf_ctl);
 
 	for (int i = ARRAY_SIZE(tas_hda->snd_ctls) - 1; i >= 0; i--)
-		if (tas_hda->snd_ctls[i])
 		snd_ctl_remove(codec->card, tas_hda->snd_ctls[i]);
 
-	if (tas_hda->prof_ctl)
 	snd_ctl_remove(codec->card, tas_hda->prof_ctl);
 }