Purge obsolete unused code.
Purge obsolete unused code.

dariomangoni/chrono,tjolsen/chrono,amelmquist/chrono,dariomangoni/chrono,armanpazouki/chrono,jcmadsen/chrono,dariomangoni/chrono,andrewseidl/chrono,armanpazouki/chrono,rserban/chrono,Milad-Rakhsha/chrono,tjolsen/chrono,projectchrono/chrono,projectchrono/chrono,armanpazouki/chrono,rserban/chrono,amelmquist/chrono,armanpazouki/chrono,dariomangoni/chrono,tjolsen/chrono,armanpazouki/chrono,andrewseidl/chrono,andrewseidl/chrono,jcmadsen/chrono,projectchrono/chrono,rserban/chrono,jcmadsen/chrono,armanpazouki/chrono,amelmquist/chrono,andrewseidl/chrono,jcmadsen/chrono,Milad-Rakhsha/chrono,rserban/chrono,jcmadsen/chrono,projectchrono/chrono,amelmquist/chrono,dariomangoni/chrono,andrewseidl/chrono,tjolsen/chrono,amelmquist/chrono,amelmquist/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,rserban/chrono,projectchrono/chrono,tjolsen/chrono,jcmadsen/chrono,jcmadsen/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,rserban/chrono,rserban/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono