Comment in ScopedEventQueue::dispatchEvent is unnecessarily verbose

Comment in ScopedEventQueue::dispatchEvent is unnecessarily verbose
https://bugs.webkit.org/show_bug.cgi?id=123252

Patch by Zan Dobersek <zdobersek@igalia.com> on 2013-10-24
Reviewed by Darin Adler.

Shorten the comment about the crash avoidance in ScopedEventQueue::dispatchEvent due to
the calling convention in C++ is left unspecified. The problem was already fixed in r157219
and later adjusted in r157401, but the comment could have been shorter and simpler in both cases.

* dom/ScopedEventQueue.cpp:
(WebCore::ScopedEventQueue::dispatchEvent):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@157933 268f45cc-cd09-0410-ab3c-d52691b4dbfc