This reverts commit 5a5783e3.

Reason for revert: https://crbug.com/v8/6857

Original change's description:
> Update V8 DEPS.
> 
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/57716b3..e7d7f78
> 
> Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/9a255f5..852ba76
> 
> TBR=machenbach@chromium.org,hablich@chromium.org
> 
> Change-Id: I43c0f1d7286ca8ea959f2de4b78337cac9fe3f7d
> Reviewed-on: https://chromium-review.googlesource.com/683735
> Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
> Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48153}

TBR=v8-autoroll@chromium.org,machenbach@chromium.org,hablich@chromium.org

Bug: v8:6857
Change-Id: I52bc977eacce90247fcf25f1c641402daa940024
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/684214Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48155}