Revert "Stage sloppy block-scoped functions (Annex B 3.3)"

Revert "Stage sloppy block-scoped functions (Annex B 3.3)"

The current implemention breaks sloppy mode code that uses function
declarations inside blocks at top-level. Work is ongoing on a patch
to fix this issue, but in the meantime it seems reasonable to move
the feature out of staging.

Manual revert of commit 6e07f5a75ba2c949ac96efabd5248c76b9957112.

Cherry-picked of bab3b5508280e7a58720f701f9dbec96f81a16d8

TBR=littledan@chromium.org,adamk@chromium.org
BUG=chromium:535836
LOG=y

Review URL: https://codereview.chromium.org/1375213005

Cr-Commit-Position: refs/heads/master@{#31029}

Committed: https://chromium.googlesource.com/v8/v8/+/5e8d5de29948e1692cac630d4169a137fd7897d4

[Michael Hablich, 2015-10-02 12:33:27]

hablich@chromium.org changed reviewers:
+ adamk@chromium.org

[Michael Hablich, 2015-10-02 12:34:05]

On 2015/10/02 12:33:27, Hablich wrote:
> mailto:hablich@chromium.org changed reviewers:
> + mailto:adamk@chromium.org

This is not on 4.7.80 (4.7 branch). Merging it unto the branch.

[Michael Hablich, 2015-10-02 12:34:43]

Committed patchset #1 (id:1) manually as
5e8d5de29948e1692cac630d4169a137fd7897d4 (presubmit successful).