I am unable to remove the legend from a CartoDB layer. I have passed legends: false in createLayer options but with no luck

cartodb.createLayer(map, BikeTrails)

                .on('done', function(layer) {legends:false

                layerBikeTrails = layer;

L.control.layers(null, {'Dedicated Bike Lanes': layerBikeLanes, 'Bike Share Toronto': layerBikeShare, 'Bike Stores': layerBikeStores, 'Access to Multipurpose Trails': layerBikeTrails}) .addTo(map);