flimflam-test: Remove list-networks This script used to have some meaning when we were using flimflam, however, now we use shill and it doesn't even work. Let it go. BUG=chromium-os:38107 TEST=None Change-Id: I5d12ba622d1724ca3c83f79948e69412f55ca4c6 Reviewed-on: https://gerrit.chromium.org/gerrit/41856 Tested-by: Christopher Wiley <[email protected]> Reviewed-by: mukesh agrawal <[email protected]> Commit-Queue: Christopher Wiley <[email protected]>