[PWGLF] Fixed std::cout --> LOG(info) also

Author: jimun_lee

PWGLF/Tasks/Resonances/kstarInOO.cxx

@@ -49,7 +49,6 @@
 #include <cmath>
 #include <cstddef>
 #include <cstdlib>
-//#include <iostream>
 #include <memory>
 #include <string>
 #include <utility>