No, He didn't. There are still prophecies concerning Messiah that need be fulfilled before the second coming.
And further, Jesus said, not one jot nor tittle will be removed from the law until all is accomplished. If Jesus knew death on the cross would abolish the law, would Jesus have reiterated parts of the law to his Apostles? When preparing them to carry forth after He departs the earth and therein deliver His Great Commission to the world?
The law is written on our hearts, so that we believers will never be separated from them. That means the law is still in effect. That also means, those who are not yet in the faith do not yet have that law in their hearts. How else will they know of it unless or until they are reached by pastors, missionaries, proselytizing, that delivers to them what the laws of God are. So that once they choose to receive Christ and become indwelt by Gods Holy Spirit, they then have those laws in their hearts.
If the laws no longer apply, why are they alive in our heart?
People who tell you the law of God is of no effect, are telling you their plight! Not the Good News Truth!