Remove spurious log statement
Remove spurious log statement

EdwardJKim/nbgrader,ellisonbg/nbgrader,jhamrick/nbgrader,EdwardJKim/nbgrader,jhamrick/nbgrader,jhamrick/nbgrader,jupyter/nbgrader,modulexcite/nbgrader,EdwardJKim/nbgrader,dementrock/nbgrader,jupyter/nbgrader,alope107/nbgrader,EdwardJKim/nbgrader,dementrock/nbgrader,MatKallada/nbgrader,ellisonbg/nbgrader,ellisonbg/nbgrader,jhamrick/nbgrader,ellisonbg/nbgrader,alope107/nbgrader,jupyter/nbgrader,modulexcite/nbgrader,MatKallada/nbgrader,jupyter/nbgrader,jupyter/nbgrader