Remove senseless response

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/QQAndroidBot.kt

@@ -408,8 +408,6 @@ internal abstract class QQAndroidBotBase constructor(
             when (response) {
                 is MultiMsg.ApplyUp.Response.MessageTooLarge ->
                     error("message is too large")
-                is MultiMsg.ApplyUp.Response.OK -> {
-                    resId = response.resId
                 }
                 is MultiMsg.ApplyUp.Response.RequireUpload -> {
                     resId = response.proto.msgResid

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/MultiMsg.kt

@@ -170,10 +170,6 @@ internal class MultiMsg {
             }
 
             object MessageTooLarge : Response()
-
-            data class OK(
-                val resId: String
-            ) : Response()
         }
 
         // captured from group