Fix event broadcasting

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

@@ -20,7 +20,6 @@ import net.mamoe.mirai.data.AddFriendResult
 import net.mamoe.mirai.data.FriendInfo
 import net.mamoe.mirai.data.GroupInfo
 import net.mamoe.mirai.data.MemberInfo
-import net.mamoe.mirai.event.events.BotEvent
 import net.mamoe.mirai.message.data.Image
 import net.mamoe.mirai.qqandroid.network.QQAndroidBotNetworkHandler
 import net.mamoe.mirai.qqandroid.network.QQAndroidClient
@@ -116,10 +115,6 @@ internal abstract class QQAndroidBotBase constructor(
         return sequence
     }
 
-    override fun onEvent(event: BotEvent): Boolean {
-        return firstLoginSucceed
-    }
-
     override suspend fun addFriend(id: Long, message: String?, remark: String?): AddFriendResult {
         TODO("not implemented")
     }

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/BotImpl.kt

@@ -14,7 +14,6 @@ package net.mamoe.mirai
 import kotlinx.coroutines.*
 import net.mamoe.mirai.event.Listener
 import net.mamoe.mirai.event.broadcast
-import net.mamoe.mirai.event.events.BotEvent
 import net.mamoe.mirai.event.events.BotOfflineEvent
 import net.mamoe.mirai.event.events.BotReloginEvent
 import net.mamoe.mirai.event.subscribeAlways
@@ -73,11 +72,6 @@ abstract class BotImpl<N : BotNetworkHandler> constructor(
         }
     }
 
-    /**
-     * 可阻止事件广播
-     */
-    abstract fun onEvent(event: BotEvent): Boolean
-
     // region network
 
     final override val network: N get() = _network

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/event/Subscribable.kt

@@ -11,8 +11,6 @@
 
 package net.mamoe.mirai.event
 
-import net.mamoe.mirai.BotImpl
-import net.mamoe.mirai.event.events.BotEvent
 import net.mamoe.mirai.event.internal.broadcastInternal
 import net.mamoe.mirai.utils.MiraiInternalAPI
 
@@ -73,9 +71,6 @@ suspend fun <E : Event> E.broadcast(): E = apply {
     if (this is BroadcastControllable && !this.shouldBroadcast) {
         return@apply
     }
-    if (this is BotEvent && !(this.bot as BotImpl<*>).onEvent(this)) {
-        return@apply
-    }
     this@broadcast.broadcastInternal() // inline, no extra cost
 }
 

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/message/FriendMessage.kt

@@ -13,7 +13,6 @@ import net.mamoe.mirai.Bot
 import net.mamoe.mirai.contact.QQ
 import net.mamoe.mirai.event.BroadcastControllable
 import net.mamoe.mirai.message.data.MessageChain
-import net.mamoe.mirai.utils.MiraiInternalAPI
 
 class FriendMessage(
     bot: Bot,