Core/Achievements: ported start event and fail event mechanics from master branch

src/server/game/Handlers/QuestHandler.cpp

@@ -409,7 +409,6 @@ void WorldSession::HandleQuestLogRemoveQuest(WorldPackets::Quest::QuestLogRemove
             _player->TakeQuestSourceItem(questId, true); // remove quest src item from player
             _player->AbandonQuest(questId); // remove all quest items player received before abandoning quest. Note, this does not remove normal drop items that happen to be quest requirements.
             _player->RemoveActiveQuest(questId);
-            _player->RemoveTimedAchievement(ACHIEVEMENT_TIMED_TYPE_QUEST, questId);
 
             TC_LOG_INFO("network", "Player %u abandoned quest %u", _player->GetGUID().GetCounter(), questId);