Fannie Mae / Federal National Mortgage Assctn Fnni Me (OTCBB:FNMA) reported its third quarter earnings today, and while FHFA director Mel Watt is preparing for the GSEs’ future role in the mortgage market, its investment portfolio continues to unwind. Fannie Mae had $3.9 billion net income in the third quarter, down from $8.7 billion in 3Q13, but the decline in YTD income is even more striking. Fannie Mae had a net income of $12.9 billion for the first nine months of this year, down from $77.5 billion for the same period last year. Fannie Mae net income falls sharply from…