code: public FutureOperation unsubscribeCandles(final BitfinexCandlestickSymbol symbol) {
  		lastTickerActivity.remove(symbol);
  		
  		final FutureOperation future = new FutureOperation(symbol);
  		pendingUnsubscribes.registerFuture(future);
  		
  		final UnsubscribeChannelCommand command = new UnsubscribeChannelCommand(symbol);
  		client.sendCommand(command);
  		return future;
  	}
docs: Unsubscribe the candles
  @param currencyPair
  @param timeframe
  @return