Remove SetLogger from C++ header

src/lib-cpp/include/Velopack.hpp

@@ -240,14 +240,6 @@ public:
         return VelopackApp(); 
     };
 
-    /**
-     * Attach a custom callback to receive log messages from Velopack.
-     */
-    VelopackApp& SetLogger(vpkc_log_callback_t cbInstall, void* p_user_data) {
-        vpkc_set_logger(cbInstall, p_user_data);
-        return *this;
-    };
-
     /**
      * Set whether to automatically apply downloaded updates on startup. This is ON by default.
      */