Revert "DevTools: Fix select all behavior in audit laucnher view after r155192."

This reverts commit 1dd22e1f0d1eb6f79366f7c09996263dab607cb1.

BUG=276843
TBR=pfeldman,apavlov@chromium.org

Review URL: https://codereview.chromium.org/23361016

git-svn-id: svn://svn.chromium.org/blink/trunk@156563 bbb929c8-8fbe-4397-9dbb-9b2b20218538