Re-enable client side encryption Scala test

JAVA-3881

Author: jyemin

driver-scala/src/it/scala/org/mongodb/scala/ClientSideEncryptionBypassAutoEncryptionSpec.scala

@@ -28,7 +28,6 @@ import scala.collection.JavaConverters._
 class ClientSideEncryptionBypassAutoEncryptionSpec extends RequiresMongoDBISpec with FuturesSpec {
 
   "ClientSideEncryption" should "be able to bypass auto encryption" in withDatabase { db =>
-    assume(false) //  JAVA-3881
     assume(serverVersionAtLeast(List(4, 1, 0)))
 
     val localMasterKey = new Array[Byte](96)