Migrates Channel.PermanentDeleteMembersByChannel to sync by default (#11238)

cmd/mattermost/commands/channel.go

@@ -265,8 +265,8 @@ func removeUserFromChannel(a *app.App, channel *model.Channel, user *model.User,
 }
 
 func removeAllUsersFromChannel(a *app.App, channel *model.Channel) {
-	if result := <-a.Srv.Store.Channel().PermanentDeleteMembersByChannel(channel.Id); result.Err != nil {
-		CommandPrintErrorln("Unable to remove all users from " + channel.Name + ". Error: " + result.Err.Error())
+	if err := a.Srv.Store.Channel().PermanentDeleteMembersByChannel(channel.Id); err != nil {
+		CommandPrintErrorln("Unable to remove all users from " + channel.Name + ". Error: " + err.Error())
 	}
 }