Remove unused QQAndroidBot.selfInfo

mirai-core/src/commonMain/kotlin/QQAndroidBot.kt

@@ -80,14 +80,6 @@ internal class QQAndroidBot constructor(
 
     override lateinit var nick: String
 
-    internal var selfInfo: JceFriendInfo? = null
-        get() = field ?: error("selfInfo is not yet initialized")
-        set(it) {
-            checkNotNull(it)
-            field = it
-            nick = it.nick
-        }
-
     override val asFriend: Friend by lazy {
         @OptIn(LowLevelApi::class)
         Mirai.newFriend(this, FriendInfoImpl(uin, nick, ""))

mirai-core/src/commonMain/kotlin/network/ContactUpdater.kt

@@ -32,7 +32,6 @@ import net.mamoe.mirai.utils.retryCatching
 import net.mamoe.mirai.utils.verbose
 
 internal interface ContactCache {
-
 }
 
 internal interface ContactUpdater {
@@ -92,13 +91,6 @@ internal class ContactUpdaterImpl(
                 bot.client, currentFriendCount, 150, 0, 0
             ).sendAndExpect<FriendList.GetFriendGroupList.Response>(timeoutMillis = 5000, retry = 2)
 
-            // self info
-            data.selfInfo?.run {
-                bot.selfInfo = this
-//                            bot.remark = remark ?: ""
-//                            bot.sex = sex
-            }
-
             totalFriendCount = data.totalFriendCount
             data.friendList.forEach {
                 // atomic