Revert of Update V8 DEPS. (patchset #1 id:1 of https://codereview.chromium.org/1824563002/ )

Reason for revert:
ICU breakage.

Original issue's description:
> Update V8 DEPS.
>
> Rolling v8/build/gyp to 133eaf70b3720b7413017ef3f9c42f6811ef9347
>
> Rolling v8/third_party/icu to 0d572d65aae621e13d6863fe470c9c8cee71043d
>
> TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org
>
> Committed: https://crrev.com/1d6dba43c2b61900be68777297634e05d479a25a
> Cr-Commit-Position: refs/heads/master@{#34914}

TBR=hablich@chromium.org,machenbach@chromium.org,vogelheim@chromium.org,v8-autoroll@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1816023002

Cr-Commit-Position: refs/heads/master@{#34915}

DEPS

@@ -8,9 +8,9 @@ vars = {
 
 deps = {
   "v8/build/gyp":
-    Var("git_url") + "/external/gyp.git" + "@" + "133eaf70b3720b7413017ef3f9c42f6811ef9347",
+    Var("git_url") + "/external/gyp.git" + "@" + "61259d585ce99d9de8b35188cd0025bdbcb58411",
   "v8/third_party/icu":
-    Var("git_url") + "/chromium/deps/icu.git" + "@" + "0d572d65aae621e13d6863fe470c9c8cee71043d",
+    Var("git_url") + "/chromium/deps/icu.git" + "@" + "6d3b55dfa17d9a597c064eeef7ceac18c73184b7",
   "v8/buildtools":
     Var("git_url") + "/chromium/buildtools.git" + "@" + "7274f1c726640bce4cd4c4198e1ee62a0b29bb89",
   "v8/base/trace_event/common":