Revert "Improve handling of errors in lua functions and speed up calls. (#1427)"

This reverts commit f10e3ae36a.

(it was a joke PR, do not fear)

src/ScreenGameplay.cpp

@@ -547,7 +547,8 @@ void ScreenGameplay::Init()
 			++next_player_slot;
 		}
 		Enum::Push(L, GAMESTATE->GetCurrentStyle(PLAYER_INVALID)->m_StyleType);
-		if(LuaHelpers::RunScriptOnStack(L, 2, 3))
+		RString err= "Error running MarginFunction:  ";
+		if(LuaHelpers::RunScriptOnStack(L, err, 2, 3, true))
 		{
 			RString marge= "Margin value must be a number.";
 			margins[PLAYER_1][0]= SafeFArg(L, -3, marge, 40);