CANADA STOCKS-TSX declines as investors brace for Fed

* TSX down 33.66 points, or 0.22 percent, at 15,476.88 * Six of the 10 main index sectors decline * Energy shares track U.S. crude oil price lower By John Tilak TORONTO, Sept 17 (Reuters) - Canada's main stock index fell on Wednesday as investors anxiously awaited release of a U.S. Federal Reserve policy statement at the conclusion of a two-day Fed meeting later in the day. Investors will search the statement for changes in the U.S. central bank's outlook on interest rates,