Merge remote-tracking branch 'origin/master'

mirai-core/src/jvmMain/kotlin/net/mamoe/mirai/network/protocol/tim/TIMBotNetworkHandler.kt

@@ -127,19 +127,11 @@ internal class TIMBotNetworkHandler(private val bot: Bot) : BotNetworkHandler {
                 return
             }
             
-            withContext(CoroutineExceptionHandler { _, e -> e.printStackTrace() }) {
-                launch(this.coroutineContext) {
             loginHandler.onPacketReceived(packet)
-                }
-
-
             packetHandlers.forEach {
-                    launch(this.coroutineContext) {
                 it.instance.onPacketReceived(packet)
             }
         }
-            }//awaits all coroutines launched in this block
-        }
 
         private var socket: DatagramSocket? = null