core: remove DOMStats artifact (#16753)

Author: connorjclark

core/config/default-config.js

@@ -117,7 +117,6 @@ const defaultConfig = {
     {id: 'ConsoleMessages', gatherer: 'console-messages'},
     {id: 'CSSUsage', gatherer: 'css-usage'},
     {id: 'Doctype', gatherer: 'dobetterweb/doctype'},
-    {id: 'DOMStats', gatherer: 'dobetterweb/domstats'},
     {id: 'Inputs', gatherer: 'inputs'},
     {id: 'IFrameElements', gatherer: 'iframe-elements'},
     {id: 'ImageElements', gatherer: 'image-elements'},

core/gather/gatherers/dobetterweb/domstats.js

@@ -114,8 +114,6 @@ export interface GathererArtifacts extends PublicGathererArtifacts {
   /** Information on the document's doctype(or null if not present), specifically the name, publicId, and systemId.
       All properties default to an empty string if not present */
   Doctype: Artifacts.Doctype | null;
-  /** Information on the size of all DOM nodes in the page and the most extreme members. */
-  DOMStats: Artifacts.DOMStats;
   /** All the iframe elements in the page. */
   IFrameElements: Artifacts.IFrameElement[];
   /** All the input elements, including associated form and label elements. */
@@ -222,13 +220,6 @@ declare module Artifacts {
     documentCompatMode: string;
   }
 
-  interface DOMStats {
-    /** The total number of elements found within the page's body. */
-    totalBodyElements: number;
-    width: NodeDetails & {max: number;};
-    depth: NodeDetails & {max: number;};
-  }
-
   interface IFrameElement {
     /** The `id` attribute of the iframe. */
     id: string,