By Herbert Lash and Elizabeth Howcroft NEW YORK/LONDON (Reuters) -Stocks in Europe and on Wall Street rebounded on Tuesday while oil prices fell after Russia indicated it was withdrawing some troops from exercises near Ukraine and President Vladimir Putin said he saw room for further discussion with the West. Gold and bond prices also slid as safe-haven assets lost some of their appeal with tensions easing a bit over Ukraine, but NATO said it had yet to see any evidence of de-escalation. The dollar index pared some losses as Putin and German Chancellor Olaf Scholz spoke, a sign tensions over U…