Time Magazine: GM’s efforts to sell its Hummer brand to a little-known Chinese company have fallen apart, the U.S. automaker announced Wednesday. As a result, GM will begin to dismantle a brand of gas-guzzling SUVs that were synonymous with pre-financial crisis wealth and excess. Specific reasons for the failure of the deal, first announced last June, were not released. But Chinese regulators had frowned on the purchase for much the same reason that U.S. consumers shunned Hummer; the vehicles size …