NEW YORK The New York Times may do away with its public editor position when the two-year term of Byron Calame -- only the second person to hold the independent slot -- concludes in May, according to a report in today's New York Observer. “Over the next couple of months," Executive Editor Bill Keller wrote in an e-mail to the Observer's Michael Calderone, "as Barney’s term enters the home stretch, I’ll be taking soundings from the staff, talking it over with the masthead, and consulting with Arthur” -- Publisher Arthur O. Sulzberger Jr. Keller added that “some of my colleagues...