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This reverts commit 33cb4c97.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 836533 as the
culprit for flakes in the build cycles as shown on:
https://analysis.chromium.org/p/chromium/flake-portal/analysis/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyQwsSDEZsYWtlQ3VscHJpdCIxY2hyb21pdW0vMzNjYjRjOTc5N2VlNjQ4YWEyNzMxMGU1NjMzODJjZjE3ZGYxNGUxMww

Sample Failed Build: https://ci.chromium.org/b/8860915097129113392

Sample Failed Step: content_browsertests_wayland

Sample Flaky Test: All/PrerenderTriggerBrowserTest.LinkRelNext/0

Original change's description:
> Prerender: Add browser tests for <link rel=next>
> 
> <link rel=next> is expected to trigger prerendering like
> <link rel=prerender>.
> 
> Note that when the feature flag `kPrerender2` is disabled,
> <link rel=next> triggers NoStatePrefetch.
> 
> Bug: 1155925
> Change-Id: If430701e125dcc55e9bded8350dcc43eed8a1a1f
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2578499
> Reviewed-by: Matt Falkenhagen <falken@chromium.org>
> Commit-Queue: Hiroki Nakagawa <nhiroki@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#836533}


Change-Id: I17b153d7da65a5573a613bce4fd4da20c18f4623
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1155925
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2588013
Cr-Commit-Position: refs/heads/master@{#836681}