Remove obsolete header.
Remove obsolete header.

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