Revert of Add d8 to the chromium_builder_asan target. (https://codereview.chromium.org/142693006/)

Reason for revert:
This may be causing issues with runhooks. Reverting to be safe until I have time to investigate.

Original issue's description:
> Add d8 to the chromium_builder_asan target.
> 
> BUG=
> R=machenbach@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=249433

TBR=machenbach@chromium.org,phajdan.jr@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/156863002

git-svn-id: http://src.chromium.org/svn/trunk/src/build@249474 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

all.gyp

@@ -657,7 +657,6 @@
           'type': 'none',
           'dependencies': [
             '../chrome/chrome.gyp:chrome',
-            '../v8/src/d8.gyp:d8',
 
             # We refer to content_shell directly rather than blink_tests
             # because we don't want the _unittests binaries.