mfd: wcd934x: Drop kfree for memory allocated with devm_kzalloc

It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.

Fixes: 6ac7e4d7 ("mfd: wcd934x: Add support to wcd9340/wcd9341 codec")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/wcd934x.c

@@ -280,7 +280,6 @@ static void wcd934x_slim_remove(struct slim_device *sdev)
 
 	regulator_bulk_disable(WCD934X_MAX_SUPPLY, ddata->supplies);
 	mfd_remove_devices(&sdev->dev);
-	kfree(ddata);
 }
 
 static const struct slim_device_id wcd934x_slim_id[] = {