Revert of Fixed a couple of failing DCHECK(has_pending_exception()). (patchset #1 id:1 of https://codereview.chromium.org/1151373002/)

Reason for revert:
Broke V8 Linux - nosnap.

Original issue's description:
> Fixed a couple of failing DCHECK(has_pending_exception()).
>
> BUG=chromium:491062
> LOG=N
>
> Committed: https://crrev.com/62b56507cce3c57a2e1aebce6d34f29b3b64e762
> Cr-Commit-Position: refs/heads/master@{#28617}

TBR=yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:491062

Review URL: https://codereview.chromium.org/1148423004

Cr-Commit-Position: refs/heads/master@{#28619}