crypto: mv_cesa: Remove redundant platform_set_drvdata()

Commit 0998d063 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/mv_cesa.c

@@ -1146,7 +1146,6 @@ static int mv_probe(struct platform_device *pdev)
 err:
 	kfree(cp);
 	cpg = NULL;
-	platform_set_drvdata(pdev, NULL);
 	return ret;
 }