loplugin:unnecessaryoverride

seen on tinderbox Linux-F19-x86_64_14-with-check

Change-Id: Ic494f75df7b2ca879e7bb312166b4c91263ee214
Reviewed-on: https://gerrit.libreoffice.org/33644Reviewed-by: Jochen Nitschke <j.nitschke+logerrit@ok.de>
Tested-by: Jochen Nitschke <j.nitschke+logerrit@ok.de>

sd/source/ui/remotecontrol/AvahiNetworkService.hxx

@@ -19,7 +19,6 @@ namespace sd {
     public:
         AvahiNetworkService(const std::string& aname = "", unsigned int aport = 1599)
             : ZeroconfService(aname, aport){}
-        virtual ~AvahiNetworkService() override {}
 
         void clear() override;
         void setup() override;