Fixes (some of) rhiju's code that break rosetta's linux gcc build.
1. Place placeholders for your unused variables:
src/core/scoring/rna/data/RNA_ChemicalMappingEnergy.cc
2.(40) RNA_DataInfo::RNA_DataInfo( RNA_DataInfo const & src ) :
utility::pointer::ReferenceCount(src)
{
.
.
.
}