ASoC: fsl: imx-wm8962: remove an unneeded check

"data->codec_clk" can't be an ERR_PTR here so I have removed the
superflous check.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/fsl/imx-wm8962.c

@@ -279,8 +279,7 @@ static int imx_wm8962_probe(struct platform_device *pdev)
 	return 0;
 
 clk_fail:
-	if (!IS_ERR(data->codec_clk))
-		clk_disable_unprepare(data->codec_clk);
+	clk_disable_unprepare(data->codec_clk);
 fail:
 	if (ssi_np)
 		of_node_put(ssi_np);