crypto: keembay - Drop if with an always false condition

A platform device's remove callback is only ever called after the probe
callback returned success.

In the case of kmb_ocs_aes_remove() this means that kmb_ocs_aes_probe()
succeeded before and so platform_set_drvdata() was called with a
non-zero argument and platform_get_drvdata() returns non-NULL.

This prepares making remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/keembay/keembay-ocs-aes-core.c

@@ -1580,8 +1580,6 @@ static int kmb_ocs_aes_remove(struct platform_device *pdev)
 	struct ocs_aes_dev *aes_dev;
 
 	aes_dev = platform_get_drvdata(pdev);
-	if (!aes_dev)
-		return -ENODEV;
 
 	unregister_aes_algs(aes_dev);