Stratosphere: Fix IServer constructors. SM is fully functional on hardware now.

stratosphere/libstratosphere/include/stratosphere/existingportserver.hpp

@@ -4,10 +4,6 @@
 
 template <typename T>
 class ExistingPortServer : public IServer<T> {    
-    private:
-        virtual Result register_self(const char *service_name) {
-            return 0;
-        }
     public:
         ExistingPortServer(Handle port_h, unsigned int max_s) : IServer<T>(NULL, max_s) {
             this->port_handle = port_h;