Remove call to reverse when focusing nested iframes

Follow / fix to
https://chromium-review.googlesource.com/c/chromium/src/+/1577919/3/chrome/browser/resources/chromeos/chromevox/cvox2/background/background.js#453

TBR=dmazzoni@chromium.org

Change-Id: I142e355d422c0eb23b22b3cb977413367439584a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1577570
Commit-Queue: David Tseng <dtseng@chromium.org>
Reviewed-by: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#653090}
1 file changed