makefile: get rid of rm -v option which doesn't work on sunos
makefile: get rid of rm -v option which doesn't work on sunos

peter-hst/psutil,zhengzheng/psutil,anfedorov/psutil,PFZheng/psutil,Alwnikrotikz/psutil,AlanZatarain/psutil,end18/psutil,stupidcache/psutil,end18/psutil,skyshe/psutil,tigerneil/psutil,skyshe/psutil,zhengzheng/psutil,shiva21/psutil,vmolsa/psutil,kiranvizru/psutil,google-code-export/psutil,end18/psutil,google-code-export/psutil,creativewild/psutil,skyshe/psutil,huson2012/psutil,jucapj/psutil,peter-hst/psutil,creativewild/psutil,chjwang/psutil,tigerneil/psutil,vmolsa/psutil,anfedorov/psutil,AlanZatarain/psutil,tigerneil/psutil,vmolsa/psutil,shiva21/psutil,djhaskin987/psutil,skyshe/psutil,nmani1905/psutil,end18/psutil,djhaskin987/psutil,djhaskin987/psutil,stupidcache/psutil,huson2012/psutil,PFZheng/psutil,kiranvizru/psutil,google-code-export/psutil,google-code-export/psutil,huson2012/psutil,kiranvizru/psutil,djhaskin987/psutil,vmolsa/psutil,marmolu/psutil,stupidcache/psutil,nmani1905/psutil,chjwang/psutil,creativewild/psutil,Alwnikrotikz/psutil,jucapj/psutil,tigerneil/psutil,kiranvizru/psutil,marmolu/psutil