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/ScriptMgr.cpp

@@ -295,7 +295,6 @@ void ScriptMgr::Unload()
 
 void ScriptMgr::LoadDatabase()
 {
-    sScriptSystemMgr->LoadVersion();
     sScriptSystemMgr->LoadScriptTexts();
     sScriptSystemMgr->LoadScriptTextsCustom();
     sScriptSystemMgr->LoadScriptWaypoints();