Revert "Update V8 DEPS."

This reverts commit 4925495c.

Reason for revert: 
https://ci.chromium.org/p/v8/builders/ci/V8%20Win32%20-%20nosnap%20-%20shared/32627
https://ci.chromium.org/p/v8/builders/ci/V8%20Win64/29699

Original change's description:
> Update V8 DEPS.
> 
> Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/e8b8ab7..c899486
> 
> Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/24b5f90..efe902b
> 
> TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org
> 
> Change-Id: I439f9415dd63820d8f665550a5ff89372e8620c3
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1527555
> Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/master@{#60274}

TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org,v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com

Change-Id: I62fa43fc614c1b1dffd841aa22a7a590c3a63cd1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1528232Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60276}

DEPS

@@ -19,9 +19,9 @@ vars = {
 
 deps = {
   'v8/build':
-    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'c899486de18ce8f60a05709bef7153f1e72651a5',
+    Var('chromium_url') + '/chromium/src/build.git' + '@' + 'e8b8ab782a34cd09bb08a9d07bf142215d17050b',
   'v8/third_party/depot_tools':
-    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + 'efe902b20b6ae0d367b354bdaa2e10c19349f880',
+    Var('chromium_url') + '/chromium/tools/depot_tools.git' + '@' + '24b5f9087ff65463761cdb064ffb564e76e273a2',
   'v8/third_party/icu':
     Var('chromium_url') + '/chromium/deps/icu.git' + '@' + '8c67416ccb4da42d817e7081ff83a2193b1aabe7',
   'v8/third_party/instrumented_libraries':