cq: remove uneeded async call

RingAccount::startOutgoingCall() use an extra ringOnMainThread()
call that gives nothing as forEachDevice() already call the callback
into the main thread.

Reviewed-by: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com>
Change-Id: Ib2ff9d3f6274e4b6f8f418ce6670461942a2abd6

src/ringdht/ringaccount.cpp

@@ -356,7 +356,6 @@ RingAccount::startOutgoingCall(const std::shared_ptr<SIPCall>& call, const std::
     // Find listening Ring devices for this account
     forEachDevice(dht::InfoHash(toUri), [wCall](const std::shared_ptr<RingAccount>& sthis, const dht::InfoHash& dev)
     {
-        runOnMainThread([=](){
         auto call = wCall.lock();
         if (not call) return;
         RING_WARN("[call %s] Found device %s", call->getCallId().c_str(), dev.toString().c_str());
@@ -442,7 +441,6 @@ RingAccount::startOutgoingCall(const std::shared_ptr<SIPCall>& call, const std::
             });
             return false;
         });
-        });
     }, [=](bool ok){
         if (not ok) {
             if (auto call = wCall.lock())