Core/Cleanup: Drop some unused code.

Closes #1010, #581, and #248

src/server/game/Entities/Player/Player.cpp

@@ -805,11 +805,6 @@ Player::Player (WorldSession *session): Unit(), m_achievementMgr(this), m_reputa
     m_summon_y = 0.0f;
     m_summon_z = 0.0f;
 
-    //Default movement to run mode
-    //m_unit_movement_flags = 0;
-
-    m_AreaID = 0;
-
     m_mover = this;
     m_movedPlayer = this;
     m_seer = this;
@@ -6770,11 +6765,6 @@ void Player::CheckAreaExploreAndOutdoor()
     if (isInFlight())
         return;
 
-    if (!m_AreaID)
-        m_AreaID = GetAreaId();
-    if (m_AreaID != GetAreaId())
-        m_AreaID = GetAreaId();
-
     bool isOutdoor;
     uint16 areaFlag = GetBaseMap()->GetAreaFlag(GetPositionX(),GetPositionY(),GetPositionZ(), &isOutdoor);
 

src/server/game/Entities/Player/Player.h

@@ -2429,7 +2429,6 @@ class Player : public Unit, public GridObject<Player>
         bool isDebugAreaTriggers;
 
     protected:
-        uint32 m_AreaID;
         uint32 m_regenTimerCount;
         float m_powerFraction[MAX_POWERS];
         uint32 m_contestedPvPTimer;