TORONTO – Rogers Communications has held a significant stake in Cogeco Communications and Cogeco Inc. for quite some time, but it’s now time for Rogers to sell that stake, according to one Bay St. analyst. Proceeds from selling the stake could go towards share buybacks, paying down debt or upcoming wireless spectrum auctions.In a research note to clients Monday, Scotiabank’s telecom and media analyst Jeff Fan recounted a long-ago plane ride with Rogers late founder Ted Rogers, in which the company creator made clear his frustration at not being able to buy Cogeco outright – so that the company could...