ASoC: fsl_xcvr: Remove unused of_id variable

The of_id variable is not used, so just remove it.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20210118123815.1630882-3-festevam@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/fsl_xcvr.c

@@ -1130,16 +1130,11 @@ MODULE_DEVICE_TABLE(of, fsl_xcvr_dt_ids);
 static int fsl_xcvr_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	const struct of_device_id *of_id;
 	struct fsl_xcvr *xcvr;
 	struct resource *ram_res, *regs_res, *rx_res, *tx_res;
 	void __iomem *regs;
 	int ret, irq;
 
-	of_id = of_match_device(fsl_xcvr_dt_ids, dev);
-	if (!of_id)
-		return -EINVAL;
-
 	xcvr = devm_kzalloc(dev, sizeof(*xcvr), GFP_KERNEL);
 	if (!xcvr)
 		return -ENOMEM;