Remove unused function.


git-svn-id: https://svn.salilab.org/imp/trunk@17394 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
add test of excluded volume restraint with non-rigid members

git-svn-id: https://svn.salilab.org/imp/trunk@17395 e91f8c7b-0e32-4433-a9ac-4502d39a4eab
resolve ref counting loop with restraints and newly cached ScoringFunction

issue #260

git-svn-id: https://svn.salilab.org/imp/trunk@17396 e91f8c7b-0e32-4433-a9ac-4502d39a4eab