**Expected behavior**: Disabling DNS seeding (`-dnsseed=0`) should make Bitcoin Core use the fixed seed nodes immediately on startup (assuming an empty `peers.dat`).

**Actual behavior**:  The fixed seed nodes are used but only after an unnecessary 60 second timeout, and a somewhat misleading log message ("Adding fixed seed nodes as DNS doesn't seem to be available.").

**To reproduce**: `rm ~/.bitcoin/peers.dat && src/bitcoind -dnsseed=0` and wait... 💤 

This issue is probably a "good first issue" :)
const bool inbound_onion = std::find(m_onion_binds.begin(), m_onion_binds.end(), addr_bind) != m_onion_binds.end();
    CNode* pnode = new CNode(id, nodeServices, hSocket, addr, CalculateKeyedNetGroup(addr), nonce, addr_bind, "", ConnectionType::INBOUND, inbound_onion);
    pnode->AddRef();
    pnode->m_permissionFlags = permissionFlags;
    pnode->m_prefer_evict = discouraged;
    m_msgproc->InitializeNode(pnode);
    LogPrint(BCLog::NET, "connection from %s accepted\n", addr.ToString());
    {
        LOCK(cs_vNodes);
        vNodes.push_back(pnode);
    }
    
    RandAddEvent((uint32_t)id);
}
bool CConnman::AddConnection(const std::string& address, ConnectionType conn_type)
{
    if (conn_type != ConnectionType::OUTBOUND_FULL_RELAY && conn_type != ConnectionType::BLOCK_RELAY) return false;
    const int max_connections = conn_type == ConnectionType::OUTBOUND_FULL_RELAY ? m_max_outbound_full_relay : m_max_outbound_block_relay;
    
    int existing_connections = WITH_LOCK(cs_vNodes,
                                         return std::count_if(vNodes.begin(), vNodes.end(), [conn_type](CNode* node) { return node->m_conn_type == conn_type; }););
    
    if (existing_connections >= max_connections) return false;
    
    CSemaphoreGrant grant(*semOutbound, true);
    if (!grant) return false;
    OpenNetworkConnection(CAddress(), false, &grant, address.c_str(), conn_type);
    return true;
}
void CConnman::DisconnectNodes()