videomanager interface: remove unused APIs

getVideoCodecList() getVideoCodecDetails() setVideoCodecList()
are declared in the interface of videomanager but not even implemented

Tuleap: #686
Change-Id: I733906571e7f25ad9f8598e4a4c06fcc871b44be

src/dring/videomanager_interface.h

@@ -53,9 +53,6 @@ using VideoCapabilities = std::map<std::string, std::map<std::string, std::vecto
 
 void registerVideoHandlers(const std::map<std::string, std::shared_ptr<CallbackWrapperBase>>&);
 
-std::vector<unsigned> getVideoCodecList(const std::string& accountID);
-std::vector<std::string> getVideoCodecDetails(unsigned codecId);
-void setVideoCodecList(const std::string& accountID, const std::vector<unsigned>& list);
 std::vector<std::string> getDeviceList();
 VideoCapabilities getCapabilities(const std::string& name);
 std::map<std::string, std::string> getSettings(const std::string& name);