Remove duplicated/unused code

libsession/src/main/java/org/session/libsession/messaging/threads/Address.kt

@@ -25,8 +25,6 @@ class Address private constructor(address: String) : Parcelable, Comparable<Addr
         get() = GroupUtil.isClosedGroup(address)
     val isOpenGroup: Boolean
         get() = GroupUtil.isOpenGroup(address)
-    val isMmsGroup: Boolean
-        get() = GroupUtil.isMmsGroup(address)
     val isContact: Boolean
         get() = !isGroup
 

libsession/src/main/java/org/session/libsession/messaging/threads/GroupRecord.kt

@@ -6,10 +6,10 @@ import java.io.IOException
 import java.util.*
 
 class GroupRecord(
-        val encodedId: String, val title: String, members: String?, val avatar: ByteArray?,
-        val avatarId: Long?, val avatarKey: ByteArray?, val avatarContentType: String?,
-        val relay: String?, val isActive: Boolean, val avatarDigest: ByteArray?, val isMms: Boolean,
-        val url: String?, admins: String?, val formationTimestamp: Long
+    val encodedId: String, val title: String, members: String?, val avatar: ByteArray?,
+    val avatarId: Long?, val avatarKey: ByteArray?, val avatarContentType: String?,
+    val relay: String?, val isActive: Boolean, val avatarDigest: ByteArray?, val isMms: Boolean,
+    val url: String?, admins: String?, val formationTimestamp: Long
 ) {
     var members: List<Address> = LinkedList<Address>()
     var admins: List<Address> = LinkedList<Address>()

libsession/src/main/java/org/session/libsession/messaging/threads/recipients/Recipient.java

@@ -289,7 +289,7 @@ public class Recipient implements RecipientModifiedListener {
     String displayName = MessagingModuleConfiguration.shared.getStorage().getDisplayName(this.address.toString());
     if (displayName != null) { return displayName; }
 
-    if (this.name == null && isMmsGroupRecipient()) {
+    if (this.name == null && isGroupRecipient()) {
       List<String> names = new LinkedList<>();
 
       for (Recipient recipient : participants) {
@@ -408,12 +408,8 @@ public class Recipient implements RecipientModifiedListener {
     return address.isOpenGroup();
   }
 
-  public boolean isMmsGroupRecipient() {
-    return address.isMmsGroup();
-  }
-
   public boolean isPushGroupRecipient() {
-    return address.isGroup() && !address.isMmsGroup();
+    return address.isGroup();
   }
 
   public @NonNull synchronized List<Recipient> getParticipants() {
@@ -593,7 +589,6 @@ public class Recipient implements RecipientModifiedListener {
 
   public synchronized RegisteredState getRegistered() {
     if      (isPushGroupRecipient()) return RegisteredState.REGISTERED;
-    else if (isMmsGroupRecipient())  return RegisteredState.NOT_REGISTERED;
 
     return registered;
   }

libsession/src/main/java/org/session/libsession/messaging/threads/recipients/RecipientProvider.java

@@ -148,10 +148,6 @@ class RecipientProvider {
         members.add(getRecipient(context, memberAddress, Optional.absent(), Optional.absent(), asynchronous));
       }
 
-      if (!groupId.isMmsGroup() && title == null) {
-        title = context.getString(R.string.RecipientProvider_unnamed_group);
-      }
-
       if (groupRecord.get().getAvatar() != null && groupRecord.get().getAvatar().length > 0) {
         avatarId = groupRecord.get().getAvatarId();
       }

libsession/src/main/java/org/session/libsession/snode/SnodeAPI.kt

@@ -7,7 +7,7 @@ import nl.komponents.kovenant.*
 import nl.komponents.kovenant.functional.bind
 import nl.komponents.kovenant.functional.map
 import org.session.libsession.messaging.utilities.MessageWrapper
-import org.session.libsession.snode.utilities.getRandomElement
+import org.session.libsignal.crypto.getRandomElement
 import org.session.libsignal.protos.SignalServiceProtos
 import org.session.libsignal.utilities.Snode
 import org.session.libsignal.utilities.HTTP

libsession/src/main/java/org/session/libsession/snode/utilities/Random.kt

@@ -1,19 +0,0 @@
-package org.session.libsession.snode.utilities
-
-import java.security.SecureRandom
-
-/**
- * Uses `SecureRandom` to pick an element from this collection.
- */
-fun <T> Collection<T>.getRandomElementOrNull(): T? {
-    if (isEmpty()) return null
-    val index = SecureRandom().nextInt(size) // SecureRandom() should be cryptographically secure
-    return elementAtOrNull(index)
-}
-
-/**
- * Uses `SecureRandom` to pick an element from this collection.
- */
-fun <T> Collection<T>.getRandomElement(): T {
-    return getRandomElementOrNull()!!
-}

libsession/src/main/java/org/session/libsession/utilities/GroupUtil.kt

@@ -7,7 +7,6 @@ import kotlin.jvm.Throws
 
 object GroupUtil {
     const val CLOSED_GROUP_PREFIX = "__textsecure_group__!"
-    const val MMS_GROUP_PREFIX = "__signal_mms_group__!"
     const val OPEN_GROUP_PREFIX = "__loki_public_chat_group__!"
 
     @JvmStatic
@@ -20,11 +19,6 @@ object GroupUtil {
         return CLOSED_GROUP_PREFIX + Hex.toStringCondensed(groupID)
     }
 
-    @JvmStatic
-    fun getEncodedMMSGroupID(groupID: ByteArray): String {
-        return MMS_GROUP_PREFIX + Hex.toStringCondensed(groupID)
-    }
-
     @JvmStatic
     fun getEncodedId(group: SignalServiceGroup): String {
         val groupId = group.groupId
@@ -52,12 +46,7 @@ object GroupUtil {
     }
 
     fun isEncodedGroup(groupId: String): Boolean {
-        return groupId.startsWith(CLOSED_GROUP_PREFIX) || groupId.startsWith(MMS_GROUP_PREFIX) || groupId.startsWith(OPEN_GROUP_PREFIX)
-    }
-
-    @JvmStatic
-    fun isMmsGroup(groupId: String): Boolean {
-        return groupId.startsWith(MMS_GROUP_PREFIX)
+        return groupId.startsWith(CLOSED_GROUP_PREFIX) || groupId.startsWith(OPEN_GROUP_PREFIX)
     }
 
     @JvmStatic

libsession/src/main/java/org/session/libsession/utilities/KeyPairUtilities.kt

@@ -53,8 +53,8 @@ object KeyPairUtilities {
     }
 
     data class KeyPairGenerationResult(
-            val seed: ByteArray,
-            val ed25519KeyPair: KeyPair,
-            val x25519KeyPair: ECKeyPair
+        val seed: ByteArray,
+        val ed25519KeyPair: KeyPair,
+        val x25519KeyPair: ECKeyPair
     )
 }

libsession/src/main/java/org/session/libsession/utilities/NumberUtil.kt

@@ -1,19 +0,0 @@
-package org.session.libsession.utilities
-
-import android.telephony.PhoneNumberUtils
-import android.util.Patterns
-
-object NumberUtil {
-    private val emailPattern = Patterns.EMAIL_ADDRESS
-
-    @JvmStatic
-    fun isValidEmail(number: String): Boolean {
-        val matcher = emailPattern.matcher(number)
-        return matcher.matches()
-    }
-
-    @JvmStatic
-    fun isValidSmsOrEmail(number: String): Boolean {
-        return PhoneNumberUtils.isWellFormedSmsAddress(number) || isValidEmail(number)
-    }
-}

libsession/src/main/java/org/session/libsession/utilities/SSKEnvironment.kt

@@ -7,11 +7,11 @@ import org.session.libsession.messaging.threads.Address
 import org.session.libsession.messaging.threads.recipients.Recipient
 
 class SSKEnvironment(
-        val typingIndicators: TypingIndicatorsProtocol,
-        val readReceiptManager: ReadReceiptManagerProtocol,
-        val profileManager: ProfileManagerProtocol,
-        val notificationManager: MessageNotifier,
-        val messageExpirationManager: MessageExpirationManagerProtocol
+    val typingIndicators: TypingIndicatorsProtocol,
+    val readReceiptManager: ReadReceiptManagerProtocol,
+    val profileManager: ProfileManagerProtocol,
+    val notificationManager: MessageNotifier,
+    val messageExpirationManager: MessageExpirationManagerProtocol
 ) {
 
     interface TypingIndicatorsProtocol {