Remove FLAG_flush_optimized_code_cache

Remove FLAG_flush_optimized_code_cache

It's no longer necessary, and has been off for a year.

BUG=

Committed: https://crrev.com/3e46a3b75437fbb6193eca915c914fcf1fff797f
Cr-Commit-Position: refs/heads/master@{#41499}

[mvstanton, 2016-12-05 14:03:14]

The CQ bit was checked by mvstanton@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-12-05 14:03:24]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[mvstanton, 2016-12-05 14:03:42]

mvstanton@chromium.org changed reviewers:
+ mstarzinger@chromium.org

[mvstanton, 2016-12-05 14:03:43]

Hi Michael,
Here is the CL we discussed, thanks!
--Mike

[commit-bot: I haz the power, 2016-12-05 14:35:47]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-12-05 14:35:48]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-12-05 17:00:13]

LGTM. Could you also adapt the mjsunit/regress/regress-crbug-513507.js test
case?

[mvstanton, 2016-12-05 17:56:02]

The CQ bit was checked by mvstanton@chromium.org

[mvstanton, 2016-12-05 17:56:03]

The patchset sent to the CQ was uploaded after l-g-t-m from
mstarzinger@chromium.org
Link to the patchset: https://codereview.chromium.org/2553643002/#ps20001
(title: "test fix.")

[commit-bot: I haz the power, 2016-12-05 17:56:11]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-05 18:28:14]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1480960562816030,
"parent_rev": "b3354e895acecb72b7b9437a0e48c117f91ecd12", "commit_rev":
"53c0b95a79c244694dbf8b17a01c4793110f7101"}

[commit-bot: I haz the power, 2016-12-05 18:28:19]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-12-05 18:28:34]

Description was changed from

==========
Remove FLAG_flush_optimized_code_cache

It's no longer necessary, and has been off for a year.

BUG=
==========

to

==========
Remove FLAG_flush_optimized_code_cache

It's no longer necessary, and has been off for a year.

BUG=

Committed: https://crrev.com/3e46a3b75437fbb6193eca915c914fcf1fff797f
Cr-Commit-Position: refs/heads/master@{#41499}
==========

[commit-bot: I haz the power, 2016-12-05 18:28:35]

Patchset 2 (id:??) landed as
https://crrev.com/3e46a3b75437fbb6193eca915c914fcf1fff797f
Cr-Commit-Position: refs/heads/master@{#41499}