Insurance companies are cutting back on their coverage of Toys “R” Us Inc. suppliers, bringing another headache to a retailer that has suffered more than two years of losses, Bloomberg News reported yesterday. Coface SA and Euler Hermes Group, which sell credit insurance to vendors, are removing Toys “R” Us from some policies and declining to renew coverage in other cases. The carriers may still negotiate with some vendors to keep providing some protection. Losing coverage could raise concerns for toy suppliers as they weigh the risks of shipping to the retail chain, which scrapped plans for an initial public offering in 2013.