Reworked attribution handling

src/ol/renderer/canvas/imagelayer.js

@@ -134,7 +134,6 @@ ol.renderer.canvas.ImageLayer.prototype.prepareFrame = function(frameState, laye
         0,
         -viewCenter[0], -viewCenter[1]);
 
-    this.updateAttributions(frameState.attributions, image.getAttributions());
     this.updateLogos(frameState, imageSource);
     this.renderedResolution = imageResolution * pixelRatio / imagePixelRatio;
   }

src/ol/renderer/canvas/vectorlayer.js

@@ -261,8 +261,6 @@ ol.renderer.canvas.VectorLayer.prototype.prepareFrame = function(frameState, lay
   var vectorLayer = /** @type {ol.layer.Vector} */ (this.getLayer());
   var vectorSource = vectorLayer.getSource();
 
-  this.updateAttributions(
-      frameState.attributions, vectorSource.getAttributions());
   this.updateLogos(frameState, vectorSource);
 
   var animating = frameState.viewHints[ol.ViewHint.ANIMATING];

src/ol/renderer/layer.js

@@ -165,23 +165,6 @@ ol.renderer.Layer.prototype.scheduleExpireCache = function(frameState, tileSourc
 };
 
 
-/**
- * @param {Object.<string, ol.Attribution>} attributionsSet Attributions
- *     set (target).
- * @param {Array.<ol.Attribution>} attributions Attributions (source).
- * @protected
- */
-ol.renderer.Layer.prototype.updateAttributions = function(attributionsSet, attributions) {
-  if (attributions) {
-    var attribution, i, ii;
-    for (i = 0, ii = attributions.length; i < ii; ++i) {
-      attribution = attributions[i];
-      attributionsSet[ol.getUid(attribution).toString()] = attribution;
-    }
-  }
-};
-
-
 /**
  * @param {olx.FrameState} frameState Frame state.
  * @param {ol.source.Source} source Source.

src/ol/renderer/webgl/imagelayer.js

@@ -190,7 +190,6 @@ ol.renderer.webgl.ImageLayer.prototype.prepareFrame = function(frameState, layer
     this.image_ = image;
     this.texture = texture;
 
-    this.updateAttributions(frameState.attributions, image.getAttributions());
     this.updateLogos(frameState, imageSource);
   }
 

src/ol/renderer/webgl/vectorlayer.js

@@ -215,8 +215,6 @@ ol.renderer.webgl.VectorLayer.prototype.prepareFrame = function(frameState, laye
   var vectorLayer = /** @type {ol.layer.Vector} */ (this.getLayer());
   var vectorSource = vectorLayer.getSource();
 
-  this.updateAttributions(
-      frameState.attributions, vectorSource.getAttributions());
   this.updateLogos(frameState, vectorSource);
 
   var animating = frameState.viewHints[ol.ViewHint.ANIMATING];