Revert of Create our own blink_heap run_all_tests target to avoid piggy-backing on wtf's.

Revert of Create our own blink_heap run_all_tests target to avoid piggy-backing on wtf's. (https://codereview.chromium.org/139293003/)

Reason for revert:
This change triggered an issue with out assembly code. Reverting until fixed.

Original issue's description:
> Trying this patch again. From what we can tell it was a glitch in the MAC WebKit builder since it seemed to recover before the change was reverted.
> 
> Create our own blink_heap run_all_tests target to avoid piggy-backing on wtf's.
> 
> We used to use wtf's run_all_tests target to run out blink heap unittests. That causes a problem when we want to initialize our heap since we cannot call Heap::init/shutdown from wtf's RunAllTests since it cannot/should not depend on blink heap.
> 
> R=ager@chromium.org, erik.corry@gmail.com, haraken@chromium.org, vegorov@chromium.org, zerny@chromium.org
> BUG=
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=165205
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=165217

TBR=ager@chromium.org,erik.corry@gmail.com,haraken@chromium.org,vegorov@chromium.org,zerny@chromium.org,alexeif@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=165220

[wibling-chromium, 2014-01-16 13:41:30]

Created Revert of Create our own blink_heap run_all_tests target to avoid
piggy-backing on wtf's.

[commit-bot: I haz the power, 2014-01-16 13:41:39]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a lowly provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[haraken, 2014-01-16 13:42:26]

LGTM

[commit-bot: I haz the power, 2014-01-16 13:42:47]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/wibling@chromium.org/139623003/1

[Mads Ager (chromium), 2014-01-16 13:43:01]

LGTM

[commit-bot: I haz the power, 2014-01-16 13:43:03]

Change committed as 165220