Revert "Enable preload=metadata lazy load everywhere."

This reverts commit 35a25733ee5f678da66a01e8da6c052113aa5b59.

Reason for revert: This is suspected to have caused test failures.

Original change's description:
> Enable preload=metadata lazy load everywhere.
> 
> Turns out I should have pulled the latest 28D data for 74 before
> limiting to !CrOS && !macOS. No regressions are shown in that data
> anymore, so enable eveywhere.
> 
> This leaves the flag in for now until we reach stable.
> 
> BUG=879406
> TBR=liberato
> 
> Change-Id: I48bd5440893ee2c74b8cc54d5575d0347b2b7e78
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1623487
> Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
> Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#662017}

TBR=dalecurtis@chromium.org,liberato@chromium.org

Change-Id: Ief5816c1045c03a0f0c53bd42affa893478668b8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 879406,965983,966003 
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1624916
Reviewed-by: Lowell Manners <lowell@chromium.org>
Commit-Queue: Lowell Manners <lowell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662217}
1 file changed