ALSA: hda: tas2781-i2c: Remove unnecessary NULL check before release_firmware()

release_firmware() checks for NULL pointers internally.
Remove unneeded NULL check for fmw here.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://patch.msgid.link/20250325084939.801117-1-nichen@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Author: Chen Ni

sound/pci/hda/tas2781_hda_i2c.c

@@ -753,8 +753,7 @@ static void tasdev_fw_ready(const struct firmware *fmw, void *context)
 
 out:
 	mutex_unlock(&tas_hda->priv->codec_lock);
-	if (fmw)
-		release_firmware(fmw);
+	release_firmware(fmw);
 	pm_runtime_mark_last_busy(tas_hda->dev);
 	pm_runtime_put_autosuspend(tas_hda->dev);
 }