remove the channelId from groupInvitation

protos/SignalService.proto

@@ -187,7 +187,6 @@ message DataMessage {
 
   message GroupInvitation {
     optional string serverAddress = 1;
-    optional uint32 channelId = 2;
     optional string serverName = 3;
   }
 

ts/models/conversation.ts

@@ -670,7 +670,6 @@ export class ConversationModel extends Backbone.Model<ConversationAttributes> {
             identifier: id,
             timestamp: sentAt,
             serverName: groupInvitation.serverName,
-            channelId: 1,
             serverAddress: groupInvitation.serverAddress,
             expireTimer: this.get('expireTimer'),
           });

ts/session/messages/outgoing/visibleMessage/GroupInvitationMessage.ts

@@ -5,7 +5,6 @@ import { MessageParams } from '../Message';
 
 interface GroupInvitationMessageParams extends MessageParams {
   serverAddress: string;
-  channelId: number;
   serverName: string;
   // if there is an expire timer set for the conversation, we need to set it.
   // otherwise, it will disable the expire timer on the receiving side.
@@ -14,14 +13,12 @@ interface GroupInvitationMessageParams extends MessageParams {
 
 export class GroupInvitationMessage extends DataMessage {
   private readonly serverAddress: string;
-  private readonly channelId: number;
   private readonly serverName: string;
   private readonly expireTimer?: number;
 
   constructor(params: GroupInvitationMessageParams) {
     super({ timestamp: params.timestamp, identifier: params.identifier });
     this.serverAddress = params.serverAddress;
-    this.channelId = params.channelId;
     this.serverName = params.serverName;
     this.expireTimer = params.expireTimer;
   }
@@ -29,7 +26,6 @@ export class GroupInvitationMessage extends DataMessage {
   public dataProto(): SignalService.DataMessage {
     const groupInvitation = new SignalService.DataMessage.GroupInvitation({
       serverAddress: this.serverAddress,
-      channelId: this.channelId,
       serverName: this.serverName,
     });
 

ts/test/session/unit/messages/GroupInvitationMessage_test.ts

@@ -9,14 +9,12 @@ describe('GroupInvitationMessage', () => {
   let message: GroupInvitationMessage;
   const timestamp = Date.now();
   const serverAddress = 'http://localhost';
-  const channelId = 1;
   const serverName = 'test';
 
   beforeEach(() => {
     message = new GroupInvitationMessage({
       timestamp,
       serverAddress,
-      channelId,
       serverName,
     });
   });
@@ -26,7 +24,6 @@ describe('GroupInvitationMessage', () => {
     const decoded = SignalService.Content.decode(plainText);
 
     expect(decoded.dataMessage?.groupInvitation).to.have.property('serverAddress', serverAddress);
-    expect(decoded.dataMessage?.groupInvitation).to.have.property('channelId', channelId);
     expect(decoded.dataMessage?.groupInvitation).to.have.property('serverName', serverName);
   });