Revert of Always list EthernetEAP as a Favorite for debugging (https://codereview...

Revert of Always list EthernetEAP as a Favorite for debugging (https://codereview.chromium.org/210433002/)

Reason for revert:
chrome_os unittest failures:

http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%281%29/builds/41308

Original issue's description:
> Always list EthernetEAP as a Favorite for debugging
>
> Because EthernetEAP is never a visible service, we do not observe it.
> When it is first created, no properties (including Profile) are set, so
> it does not appear in the 'Favorite' list and as a result never gets
> updated. This currently only affects debugging.
>
> As a workaround, we always treat EthernetEAP networks as a Favorite,
> eveb if Profile is empty.
>
> BUG=355117
> R=pneubeck@chromium.org
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=259682

TBR=pneubeck@chromium.org,stevenjb@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=355117

Review URL: https://codereview.chromium.org/212953010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@259714 0039d316-1c4b-4281-b951-d872f2087c98