GENERAL PARTNERS SELLS GENCORP <GY> STAKE General Partners, a Texas partnership that recently ended its bid to take over GenCorp Inc, told the Securities and Exchange Commission it sold nearly all of its remaining 8.6 pct stake in the company. General Partners said it sold 1,930,500 shares of GenCorp on April 10 at 118.25 dlrs a share in an open market transaction on the New York Stock Exchange. It said the sale leaves it with 108 GenCorp common shares. The partnership, which includes Wagner and Brown of Midland Texas and Irvine, Calif.-based AFG Industries Inc, last week dropped its 100 dlr a share hostile tender offer.