[flow][libdef][EZ] Remove shadowed NodeFilter in builtin libdef

Summary:
This entry has been completely shadowed by the one in dom.js: https://github.com/facebook/flow/blob/289888e35b083b773c8b01980040b023a10d3116/lib/dom.js#L4430. This diff just removes it.

Changelog: [internal]

Reviewed By: panagosg7

Differential Revision: D69784626

fbshipit-source-id: 7de61b4cd6ce0b09e6e52d33c9aaf2ada08e839d

lib/bom.js

@@ -849,27 +849,6 @@ declare class ResizeObserver {
   disconnect(): void;
 }
 
-declare var NodeFilter: {
-  acceptNode(n: Node): number,
-  SHOW_ENTITY_REFERENCE: number,
-  SHOW_NOTATION: number,
-  SHOW_ENTITY: number,
-  SHOW_DOCUMENT: number,
-  SHOW_PROCESSING_INSTRUCTION: number,
-  FILTER_REJECT: number,
-  SHOW_CDATA_SECTION: number,
-  FILTER_ACCEPT: number,
-  SHOW_ALL: number,
-  SHOW_DOCUMENT_TYPE: number,
-  SHOW_TEXT: number,
-  SHOW_ELEMENT: number,
-  SHOW_COMMENT: number,
-  FILTER_SKIP: number,
-  SHOW_ATTRIBUTE: number,
-  SHOW_DOCUMENT_FRAGMENT: number,
-  ...
-};
-
 declare class CloseEvent extends Event {
     code: number;
     reason: string;

tests/bom/bom.exp

@@ -662,8 +662,8 @@ Cannot assign `headers.get(...)` to `b` because null [1] is incompatible with st
                            ^^^^^^^^^^^^^^^^^^
 
 References:
-   <BUILTINS>/bom.js:1599:24
-   1599|     get(name: string): null | string;
+   <BUILTINS>/bom.js:1578:24
+   1578|     get(name: string): null | string;
                                 ^^^^ [1]
    Headers.js:8:10
       8| const b: string = headers.get('foo'); // incorrect
@@ -980,8 +980,8 @@ Cannot assign `params.get(...)` to `b` because null [1] is incompatible with str
                            ^^^^^^^^^^^^^^^^^
 
 References:
-   <BUILTINS>/bom.js:1616:24
-   1616|     get(name: string): null | string;
+   <BUILTINS>/bom.js:1595:24
+   1595|     get(name: string): null | string;
                                 ^^^^ [1]
    URLSearchParams.js:8:10
       8| const b: string = params.get('foo'); // incorrect