Had Ananias been told that he was no longer under the Law but under grace?
No. According to the account, Ananias was a devout, believing Jew who still kept the Law. No one had yet told him, or other Jewish believers, that they were no longer under the Law but under grace. They had not been told to quit temple worship or stop legalism, and they maintained their Judaism while recognizing Jesus as the Christ.
Les explains that Ananias was a devout man according to the Word, a Jew, and therefore a believing but law-keeping Jew. At that point, no one had told Ananias that he was not under the Law but under grace. Likewise, no one had told these Jewish believers to quit temple worship or stop legalism; they maintained their Judaism while also recognizing that Jesus was the Christ.