Revert "Disable Overlay socket handoffs"

This reverts commit 8eb05d0950.

src/ripple/overlay/impl/OverlayImpl.cpp

@@ -194,16 +194,10 @@ OverlayImpl::onHandoff (std::unique_ptr <beast::asio::ssl_bundle>&& ssl_bundle,
     beast::Journal journal (sink);
 
     Handoff handoff;
-
-#if 1
-    // VFALCO Disable handoffs
-    return handoff;
-#else
     if (processRequest(request, handoff))
         return handoff;
     if (! isPeerUpgrade(request))
         return handoff;
-#endif
 
     handoff.moved = true;