Remove a log statement from bridgedb.Main.
Remove a log statement from bridgedb.Main.

Because of the duplicate bridge problem we've been having, this log statement
was causing nearly every bridge fingerprint to get recorded to the logfiles
every 30 minutes (when BridgeDB is SIGHUPed).

 * REMOVE a log statement.

pagea/bridgedb,wfn/bridgedb,mmaker/bridgedb,pagea/bridgedb,wfn/bridgedb,mmaker/bridgedb