HERSHEY, Pa. - Hershey Foods Corp. workers, residents and government officials rallied yesterday to protest the possible sale of the nation's largest chocolate-maker, saying it would devastate the company and the community. "We look at this ultimatum and say 'nuts,' " U.S. Rep. George Gekas (R., Pa.) of Dauphin County said at the lunchtime rally, which drew hundreds of people to Hershey's Chocolate Town Square. "I can't believe they're thinking of selling it," Sandy Farmer, a local real estate agent, said. The Hershey Trust Co., which controls 77 percent of Hershey Foods' voting shares, announced last week that it was...