Remove obsolete code that invalidates document element on LayoutView resize

third_party/WebKit/LayoutTests/paint/invalidation/scrolled-iframe-scrollbar-change-expected.txt

 {
   "objectPaintInvalidations": [
     {
       "object": "VerticalScrollbar",
       "reason": "scroll"
     },
     {
       "object": "LayoutView #document",
       "reason": "scroll"
     },
     {
       "object": "LayoutView #document",
       "reason": "style change"
     },
     {
-      "object": "LayoutBlockFlow HTML",
-      "reason": "forced by layout"
-    },
-    {
       "object": "LayoutBlockFlow BODY class='noScroll'",
       "reason": "style change"
     },
     {
       "object": "LayoutBlockFlow DIV id='container'",
       "reason": "border box change"
     },
     {
       "object": "LayoutBlockFlow (positioned) DIV id='overlay'",
       "reason": "layoutObject insertion"
     }
   ]
 }