getlantern/lantern#1895 Stopping old connection pool when restarting ser...

...ver
Good catch.  There's actually no need for the new version.  I had used it during testing because it added some trace logging, but we don't need that for this build.  I've reverted to v1 - https://github.com/getlantern/flashlight/commit/ff83e91f99b2a8c98362f8733a56e6620368f4e1