Remove flag for launched AppleScriptExecuteJavaScriptMenuItem feature.

Bug: 829021
Change-Id: I19b5f71e8c43541459f8429cbdfe36d9823d7b81
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1742568
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#685309}
6 files changed