Revert "[bfcache] Add notRestoredReasons field in PerformanceNavigati…

…onTiming"

This reverts commit e1af9facf232a11871b0c668b90ec17c5a5d5e16.

Reason for revert: Likely cause for multiple builder failures. For example, see https://ci.chromium.org/ui/p/chromium/builders/ci/Linux%20ASan%20Tests%20(sandboxed)/93643/overview

Original change's description:
> [bfcache] Add notRestoredReasons field in PerformanceNavigationTiming
>
> This CL adds back/forward cache not restored reasons in Performance
> NavigationTiming API.
> It's proposed here:
> w3c/navigation-timing#171
> Explainer: https://github.com/rubberyuzu/bfcache-not-retored-reason/blob/main/NotRestoredReason.md
>
> This CL does two things:
> - exposes not restored reasons to PerformanceNavigationTiming API
> - adds WPT
>
> The WPT have to run on all platforms because this API is intended to
> collect bfcache metrics from the wild, regardless of the platforms.
>
> LOW_COVERAGE_REASON=Adding coverage for new field. Just missing the tests for the existing fields
>
> Bug: 1349228
> Change-Id: I8dd96a60188bdff94a21c4e4e34cacf181a823db
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3835534
> Reviewed-by: Daniel Cheng <[email protected]>
> Reviewed-by: Kentaro Hara <[email protected]>
> Reviewed-by: Weizhong Xia <[email protected]>
> Commit-Queue: Yuzu Saijo <[email protected]>
> Cr-Commit-Position: refs/heads/main@{#1054800}

Bug: 1349228
Change-Id: Iab0fed375560bb0b09bf4e8ea18b80c5d88b1375
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3935464
Owners-Override: Emily Shack <[email protected]>
Reviewed-by: Kentaro Hara <[email protected]>
Commit-Queue: Kentaro Hara <[email protected]>
Auto-Submit: Emily Shack <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1055015}

html/browsers/browsing-the-web/remote-context-helper-tests/resources/test-helper.js

@@ -46,40 +46,3 @@ async function assertHeaderIsAsExpected(
         return res.headers.get(headerName);
       }, [headerName]), 'header is set');
 }
-
-async function  assertNotRestoredReasonsEquals(
-  remoteContextHelper, blocked, url, src, id, name, reasons, children) {
-  let result = await remoteContextHelper.executeScript(() => {
-    return performance.getEntriesByType('navigation')[0].notRestoredReasons;
-  });
-  assertReasonsStructEquals(result, blocked, url, src, id, name, reasons, children);
-}
-
-function assertReasonsStructEquals(result, blocked, url, src, id, name, reasons, children) {
-  assert_equals(result.blocked, blocked);
-  assert_equals(result.url, url);
-  assert_equals(result.src, src);
-  assert_equals(result.id, id);
-  assert_equals(result.name, name);
-  // Reasons should match.
-  assert_equals(result.reasons.length, reasons.length);
-  reasons.sort();
-  result.reasons.sort();
-  for (let i=0; i<reasons.length; i++) {
-    assert_equals(result.reasons[i], reasons[i]);
-  }
-  // Children should match.
-  assert_equals(result.children.length, children.length);
-  children.sort();
-  result.children.sort();
-  for (let j=0; j<children.length; j++) {
-    assertReasonsStructEquals(result.children[0],
-      children[0].blocked,
-      children[0].url,
-      children[0].src,
-      children[0].id,
-      children[0].name,
-      children[0].reasons,
-      children[0].children);
-  }
-}