removed unused umports

Author: kushti

avldb/src/main/scala/scorex/db/ByteArrayUtils.scala

@@ -2,8 +2,6 @@ package scorex.db
 
 object ByteArrayUtils {
 
-  import java.util.Comparator
-
   // Java comparator
   object BYTE_ARRAY_COMPARATOR extends Ordering[Array[Byte]] {
     def compare(o1: Array[Byte], o2: Array[Byte]) = compare(o1, o2)

avldb/src/test/scala/scorex/db/ByteArrayUtilsSpec.scala

@@ -6,7 +6,6 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.propspec.AnyPropSpec
 import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks
 
-import scala.collection.mutable
 import scala.math.Ordering.Implicits._
 
 class ByteArrayUtilsSpec extends AnyPropSpec with ScalaCheckPropertyChecks with Matchers {

ergo-core/src/main/scala/org/ergoplatform/http/api/ApiCodecs.scala

@@ -23,7 +23,7 @@ import scorex.crypto.hash.Digest
 import scorex.util.encode.Base16
 import sigmastate.Values.SigmaBoolean
 import sigmastate._
-import sigmastate.crypto.CryptoConstants.{EcPointType, EncodedGroupElementLength}
+import sigmastate.crypto.CryptoConstants.EcPointType
 import sigmastate.crypto.DLogProtocol.{DLogProverInput, FirstDLogProverMessage, ProveDlog}
 import sigmastate.crypto.VerifierMessage.Challenge
 import sigmastate.crypto._

ergo-core/src/main/scala/org/ergoplatform/modifiers/history/extension/ExtensionSerializer.scala

@@ -6,7 +6,6 @@ import scorex.util.serialization.{Reader, Writer}
 import scorex.util.{bytesToId, idToBytes}
 
 import scala.annotation.nowarn
-import scala.collection.compat.immutable.LazyList
 
 object ExtensionSerializer extends ErgoSerializer[Extension] {