Fix macOS build error (again)

Adds to f0cf5a5c19

Forgot to remove vestigial code

src/osx/advanced-scene-switcher-osx.mm

@@ -41,7 +41,6 @@ void GetWindowList(QStringList &windows)
 
             const char *str = name.UTF8String;
             if (str && *str)
-                windows.emplace_back(str);
                 windows << QString(str);
         }
     }