### Describe the issue

bitcoin-qt: Debug pop-up window, Peers tab, right-click ban node for 1 hour, day, week, year does nothing. Disconnect node still works.
### Is the issue reproducible?

Yes.
#### List steps to reproduce below:
1. build master branch after commit https://github.com/bitcoin/bitcoin/commit/6423116741de2144872389cf63a621539ae79aaa
2. launch bitcoin-qt (on testnet is advisable)
3. test ban node list right-click functionality on Menu->Help->Debug pop-up window, Peers tab.

{
    LOCK(cs_vAddedNodes);
    for(std::vector<std::string>::iterator it = vAddedNodes.begin(); it != vAddedNodes.end(); ++it) {
        if (strNode == *it) {
            vAddedNodes.erase(it);
            return true;
        }
    }
    return false;
}
size_t CConnman::GetNodeCount(NumConnections flags)
{
    LOCK(cs_vNodes);
    if (flags == CConnman::CONNECTIONS_ALL) 
        return vNodes.size();
    int nNum = 0;
    for(std::vector<CNode*>::const_iterator it = vNodes.begin(); it != vNodes.end(); ++it)
        if (flags & ((*it)->fInbound ? CONNECTIONS_IN : CONNECTIONS_OUT))
            nNum++;
    return nNum;
}
void CConnman::GetNodeStats(std::vector<CNodeStats>& vstats)