Remove unnecessary printf.
Remove unnecessary printf.

hristoterezov/robotjs,octalmage/robotjs,hristoterezov/robotjs,BHamrick1/robotjs,hristoterezov/robotjs,hristoterezov/robotjs,octalmage/robotjs,BHamrick1/robotjs,octalmage/robotjs,BHamrick1/robotjs,BHamrick1/robotjs,octalmage/robotjs