Revert of Roll Syzygy DEPS to v0.8.21.0 (patchset #1 id:1 of...

Revert of Roll Syzygy DEPS to v0.8.21.0 (patchset #1 id:1 of https://codereview.chromium.org/2364613002/ )

Reason for revert:
Break the official builders.

BUG=644608

Original issue's description:
> Roll Syzygy DEPS to v0.8.21.0
>
> Committed: https://crrev.com/b7f4d860d580c5b0c2981356b181859d219bbe0d
> Cr-Commit-Position: refs/heads/master@{#420491}

TBR=siggi@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/2369483002
Cr-Commit-Position: refs/heads/master@{#420607}

DEPS

@@ -928,7 +928,7 @@ hooks = [
     'action': ['python',
                'src/build/get_syzygy_binaries.py',
                '--output-dir=src/third_party/syzygy/binaries',
-               '--revision=734ae20be0862a6e1667f45d4fd4ceb2c430b2f6',
+               '--revision=ba2ce2c31c16fe53b337121ec480fc5d4dfb4eec',
                '--overwrite',
     ],
   },