Remove extraneous library.


git-svn-id: https://svn.salilab.org/imp/trunk@16671 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
fix clang diagnostic

git-svn-id: https://svn.salilab.org/imp/trunk@16672 e91f8c7b-0e32-4433-a9ac-4502d39a4eab