Do not keep potentially unused tiles in the render queue

src/ol/renderer/canvas/VectorTileLayer.js

@@ -29,7 +29,7 @@ import {
   makeInverse
 } from '../../transform.js';
 import CanvasExecutorGroup, {replayDeclutter} from '../../render/canvas/ExecutorGroup.js';
-import {isEmpty} from '../../obj.js';
+import {clear} from '../../obj.js';
 
 
 /**
@@ -550,10 +550,7 @@ class CanvasVectorTileLayerRenderer extends CanvasTileLayerRenderer {
       delete this.renderTileImageQueue_[uid];
       this.renderTileImage_(tile, frameState.pixelRatio, frameState.viewState.projection);
     }
-    if (!isEmpty(this.renderTileImageQueue_)) {
-      // If there's items left in the queue, render them in another frame
-      frameState.animate = true;
-    }
+    clear(this.renderTileImageQueue_);
   }
 
   /**