Rollback ContextMenu

third_party/WebKit/Source/core/html/HTMLTagNames.json5

 {
   metadata: {
     namespace: "HTML",
     namespacePrefix: "xhtml",
     namespaceURI: "http://www.w3.org/1999/xhtml",
     fallbackInterfaceName: "HTMLUnknownElement",
     export: "CORE_EXPORT",
   },
 
   data: [
@@ skipping 251 matching lines @@
       name: "main",
       interfaceName: "HTMLElement",
     },
     "map",
     {
       name: "mark",
       interfaceName: "HTMLElement",
     },
     "marquee",
     "menu",
-    {
-      name: "menuitem",
-      interfaceName: "HTMLMenuItemElement",
-      runtimeEnabled: "contextMenu",
-    },
     "meta",
     {
       name: "meter",
       interfaceName: "HTMLMeterElement",
     },
     {
       name: "nav",
       interfaceName: "HTMLElement",
     },
     {
@@ skipping 185 matching lines @@
       name: "xmp",
       interfaceName: "HTMLPreElement",
     },
     {
       name: "noscript",
       JSInterfaceName: "HTMLElement",
       interfaceName: "HTMLNoScriptElement",
     },
   ],
 }