Simplify hit detection code

src/ol/featureoverlay.js

@@ -191,7 +191,7 @@ ol.FeatureOverlay.prototype.handleMapPostCompose_ = function(event) {
     ii = styles.length;
     for (i = 0; i < ii; ++i) {
       ol.renderer.vector.renderFeature(replayGroup, feature, styles[i],
-          squaredTolerance, feature, this.handleImageChange_, this);
+          squaredTolerance, this.handleImageChange_, this);
     }
   }, this);
 };