Removed unreachable code.  Closes #540.
Removed unreachable code.  Closes #540.

tgvaughan/beast2,CompEvol/beast2,Anaphory/beast2,tgvaughan/beast2,CompEvol/beast2,Anaphory/beast2,tgvaughan/beast2,Anaphory/beast2,tgvaughan/beast2,CompEvol/beast2,CompEvol/beast2,Anaphory/beast2