remove cmake python output

cmake/util.cmake

@@ -149,7 +149,6 @@ endfunction()
 # Create a python unittest using run_python_tests.sh,
 # which takes care of making correct running environment
 function(add_python_test TEST_NAME)
-    message("PYTHON: ${PYTHON_EXECUTABLE}")
     add_test(NAME ${TEST_NAME}
         COMMAND bash ${PROJ_ROOT}/paddle/scripts/run_python_tests.sh
         ${USE_VIRTUALENV_FOR_TEST} ${PYTHON_EXECUTABLE} ${ARGN}