Core/Loading: Drop the field script_version from the table version.

It serves no purpose (and one step closer to remove EAI from the core/db)

src/server/game/Scripting/ScriptSystem.h

@@ -64,7 +64,6 @@ class SystemMgr
         typedef UNORDERED_MAP<uint32, ScriptPointVector> PointMoveMap;
 
         //Database
-        void LoadVersion();
         void LoadScriptTexts();
         void LoadScriptTextsCustom();
         void LoadScriptWaypoints();