Pre-suppress errors ahead of builtin libdef improvements

Summary:
X-link: facebook/react-native#49647

Changelog: [Internal]

Reviewed By: panagosg7

Differential Revision: D70103465

fbshipit-source-id: 24f3c9fa7c56ed88609e60202d2a8c865fe18b47

Author: SamChou19815

packages/metro-runtime/src/polyfills/require.js

@@ -888,6 +888,7 @@ if (__DEV__) {
     if (
       typeof window !== 'undefined' &&
       window.location != null &&
+      // $FlowFixMe[method-unbinding]
       typeof window.location.reload === 'function'
     ) {
       window.location.reload();