Removing the empty destructor in favour of an explicit default

src/connection_wrap.h

@@ -23,8 +23,7 @@ class ConnectionWrap : public StreamWrap {
                  v8::Local<v8::Object> object,
                  ProviderType provider,
                  AsyncWrap* parent);
-  ~ConnectionWrap() {
-  }
+  ~ConnectionWrap() = default;
 
   UVType handle_;
 };