Revert of Add DumpWithoutCrashing in RendererDidNavigateToExistingPage (patchset #3 id:40001 of https://codereview.chromium.org/2701523004/ )

Reason for revert:
We got the data we wanted.

Original issue's description:
> Add DumpWithoutCrashing in RendererDidNavigateToExistingPage
>
> This is intended to be reverted after investigating the linked bug.
>
> BUG=688425
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
>
> Review-Url: https://codereview.chromium.org/2701523004
> Cr-Commit-Position: refs/heads/master@{#450900}
> Committed: https://chromium.googlesource.com/chromium/src/+/c32cd2069ae8062b52e5b7b1faf5936bd71a583a

TBR=nasko@chromium.org,estark@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=688425

Review-Url: https://codereview.chromium.org/2711533002
Cr-Commit-Position: refs/heads/master@{#451960}
1 file changed