Remove obsolete code that invalidates document element on LayoutView resize

third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/shift-relative-positioned-container-with-image-removal-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [785, 742],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
-          "object": "LayoutBlockFlow HTML",
-          "rect": [0, 0, 785, 841],
-          "reason": "forced by layout"
-        },
-        {
           "object": "LayoutView #document",
           "rect": [0, 742, 785, 99],
           "reason": "incremental"
         },
         {
           "object": "LayoutBlockFlow (relative positioned) DIV class='relative paddingTop'",
           "rect": [8, 191, 769, 642],
           "reason": "bounds change"
         },
         {
@@ skipping 35 matching lines @@
     },
     {
       "object": "LayoutBlockFlow (anonymous)",
       "reason": "layoutObject removal"
     },
     {
       "object": "LayoutView #document",
       "reason": "incremental"
     },
     {
-      "object": "LayoutBlockFlow HTML",
-      "reason": "forced by layout"
-    },
-    {
       "object": "LayoutBlockFlow (relative positioned) DIV class='relative paddingTop'",
       "reason": "bounds change"
     },
     {
       "object": "RootInlineBox",
       "reason": "bounds change"
     },
     {
       "object": "LayoutImage IMG",
       "reason": "bounds change"
     },
     {
       "object": "LayoutText #text",
       "reason": "location change"
     }
   ]
 }