Revert "autotest: Add pyshark for wifi packet capture analysis in lab machines."

This reverts commit 3448e558360d0d29c3703bc38c08e2f54ff76cc8.

BUG=chromium:470708
TEST=`python utils/build_externals.py`
DEPLOY=build_externals

Change-Id: Ie417254aa0432214bc4543a8735b89a208281b2f
Reviewed-on: https://chromium-review.googlesource.com/263723
Tested-by: Roshan Pius <rpius@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Roshan Pius <rpius@chromium.org>
1 file changed