Wendy's International Inc. (NYSE:WEN - news), the No. 3 U.S. hamburger chain, on Friday said it would remove the term "Biggie" from its french fries and drinks, switching to the well known terms small, medium and large.However, the new designations may confuse some diners who are used to such sizing at other restaurants.At rival McDonald's Corp. (NYSE:MCD - news), the largest burger chain, a 32 ounce soft drink is designated a large. At Wendy's, a 32 ounce drink will now be called medium, instead of Biggie.Wendy's is also adding a 42-ounce soft drink -- the equivalent of 3-1/2 cans of...