Remove bogus assert on number of oubound connections.

This value can be significantly higher if the users uses addnode

Github-Pull: #8944
Rebased-From: 1ab21cf344

src/net.cpp

@@ -1655,7 +1655,6 @@ void ThreadOpenConnections()
                 }
             }
         }
-        assert(nOutbound <= (MAX_OUTBOUND_CONNECTIONS + MAX_FEELER_CONNECTIONS));
 
         // Feeler Connections
         //