chore(PCH): remove "ScriptPCH.h" from cpp scripts (#1423)

remove "ScriptPCH.h" from cpp scripts as it is intended to be used as precompiled header for the build process only

src/server/scripts/Outland/CoilfangReservoir/SerpentShrine/serpent_shrine.h

@@ -5,7 +5,11 @@
 #ifndef DEF_SERPENT_SHRINE_H
 #define DEF_SERPENT_SHRINE_H
 
-#include "ScriptPCH.h"
+#include "Player.h"
+#include "SpellScript.h"
+#include "CreatureAI.h"
+#include "SpellAuraEffects.h"
+#include "GridNotifiers.h"
 
 enum DataTypes
 {

src/server/scripts/Outland/CoilfangReservoir/SteamVault/steam_vault.h

@@ -5,7 +5,7 @@
 #ifndef DEF_STEAM_VAULT_H
 #define DEF_STEAM_VAULT_H
 
-#include "ScriptPCH.h"
+#include "PassiveAI.h"
 
 enum steamVault
 {

src/server/scripts/Outland/CoilfangReservoir/underbog/boss_the_black_stalker.cpp

@@ -12,8 +12,8 @@ SDCategory: Coilfang Resevoir, Underbog
 EndScriptData */
 
 #include "ScriptMgr.h"
-#include "ScriptPCH.h"
 #include "ScriptedCreature.h"
+#include "SpellScript.h"
 
 enum eBlackStalker
 {