rm unnecessary border-radius properties from .btn-group-vertical code
rm unnecessary border-radius properties from .btn-group-vertical code

[skip sauce]
[skip validator]

Hemphill/bootstrap-docs,afuno/bootstrap,andresgalante/bootstrap,stanwmusic/bootstrap,TheFridayInstitute/bootstrap,edanbarak/bootstrap,twbs/bootstrap,Delagen/bootstrap,hebbet/bootstrap,9-chirno/chirno,johnajacob/bootstrap,yuyokk/bootstrap,janseliger/bootstrap,abvalentine/bootstrap,slavanga/bootstrap,gijsbotje/bootstrap,coliff/bootstrap,wesamco/bootstrap-rtl,peterblazejewicz/bootstrap,seanwu99/bootstrap,bootstrapbrasil/bootstrap,bardiharborow/bootstrap,NCARB/bootstrap,SweetProcess/bootstrap,copperdesign/bootstrap,SweetProcess/bootstrap,gijsbotje/bootstrap,sealocal/bootstrap,Hightrack/bootstrap,xt0rted/bootstrap,zalog/bootstrap,johnajacob/bootstrap,wesamco/bootstrap-rtl,SweetProcess/bootstrap,vsn4ik/bootstrap,coliff/bootstrap,xt0rted/bootstrap,davethegr8/bootstrap,davethegr8/bootstrap,tagliala/bootstrap,IdanCo/bootstrap,david-schopf/bootstrap,joblocal/bootstrap,janseliger/bootstrap,slavanga/bootstrap,seanwu99/bootstrap,supergibbs/bootstrap,bardiharborow/bootstrap,tibo66/bootstrap,joblocal/bootstrap,tagliala/bootstrap,bardiharborow/bootstrap,joblocal/bootstrap,m5o/bootstrap,supergibbs/bootstrap,stanwmusic/bootstrap,Lyricalz/bootstrap,Scoutski/bootstrap,andresgalante/bootstrap,tomlutzenberger/bootstrap,bootstrapbrasil/bootstrap,Scoutski/bootstrap,NCARB/bootstrap,kvlsrg/bootstrap,inway/bootstrap,twbs/bootstrap,TheFridayInstitute/bootstrap,n054/bootstrap,Delagen/bootstrap,fschumann1211/bootstrap,Scoutski/bootstrap,nice-fungal/bootstrap,onenameio/rhythm-bootstrap,wesamco/bootstrap-rtl,tibo66/bootstrap,david-schopf/bootstrap,yuyokk/bootstrap,9-chirno/chirno,copperdesign/bootstrap,david-schopf/bootstrap,GerHobbelt/bootstrap,abvalentine/bootstrap,lemuelbarango/bootstrap,vitaligent/4,igoynawamreh/bootstrap,edanbarak/bootstrap,afuno/bootstrap,tjkohli/bootstrap,vitaligent/4,m5o/bootstrap,Hightrack/bootstrap,realcrowd/bootstrap,wesamco/bootstrap-rtl,Lyricalz/bootstrap,jipexu/bootstrap,onenameio/rhythm-bootstrap,fschumann1211/bootstrap,andresgalante/bootstrap,tjkohli/bootstrap,abvalentine/bootstrap,copperdesign/bootstrap,hebbet/bootstrap,seanwu99/bootstrap,janseliger/bootstrap,lipis/bootstrap,vsn4ik/bootstrap,lipis/bootstrap,gijsbotje/bootstrap,Hemphill/bootstrap-docs,edanbarak/bootstrap,tibo66/bootstrap,tibo66/bootstrap,NCARB/bootstrap,fschumann1211/bootstrap,andresgalante/bootstrap,JumpLinkNetwork/bootstrap-backward,Delagen/bootstrap,kvlsrg/bootstrap,xt0rted/bootstrap,lipis/bootstrap,tomlutzenberger/bootstrap,JumpLinkNetwork/bootstrap-backward,frostbitten/bootstrap,onenameio/rhythm-bootstrap,afuno/bootstrap,jipexu/bootstrap,9-chirno/chirno,edanbarak/bootstrap,n054/bootstrap,yuyokk/bootstrap,JumpLinkNetwork/bootstrap-backward,TheFridayInstitute/bootstrap,bardiharborow/bootstrap,abvalentine/bootstrap,realcrowd/bootstrap,supergibbs/bootstrap,stanwmusic/bootstrap,jipexu/bootstrap,fschumann1211/bootstrap,creativewebjp/bootstrap,frostbitten/bootstrap,frostbitten/bootstrap,GerHobbelt/bootstrap,tagliala/bootstrap,NCARB/bootstrap,n054/bootstrap,inway/bootstrap,johnajacob/bootstrap,frostbitten/bootstrap,lemuelbarango/bootstrap,IdanCo/bootstrap,hebbet/bootstrap,zalog/bootstrap,n054/bootstrap,blockstack/blockstack-bootstrap,joblocal/bootstrap,xt0rted/bootstrap,Lyricalz/bootstrap,vsn4ik/bootstrap,seanwu99/bootstrap,creativewebjp/bootstrap,davethegr8/bootstrap,janseliger/bootstrap,TheFridayInstitute/bootstrap,peterblazejewicz/bootstrap,creativewebjp/bootstrap,slavanga/bootstrap,peterblazejewicz/bootstrap,davethegr8/bootstrap,yuyokk/bootstrap,nice-fungal/bootstrap,blockstack/blockstack-bootstrap,sealocal/bootstrap,lipis/bootstrap,IdanCo/bootstrap,realcrowd/bootstrap,tomlutzenberger/bootstrap,zalog/bootstrap,inway/bootstrap,kvlsrg/bootstrap,GerHobbelt/bootstrap,Delagen/bootstrap,gijsbotje/bootstrap,igoynawamreh/bootstrap,sealocal/bootstrap,JumpLinkNetwork/bootstrap-backward,slavanga/bootstrap,stanwmusic/bootstrap,nice-fungal/bootstrap,afuno/bootstrap,bootstrapbrasil/bootstrap,lemuelbarango/bootstrap,realcrowd/bootstrap,creativewebjp/bootstrap,hebbet/bootstrap,Lyricalz/bootstrap,Hightrack/bootstrap,igoynawamreh/bootstrap,Hemphill/bootstrap-docs,IdanCo/bootstrap,9-chirno/chirno,vsn4ik/bootstrap,jipexu/bootstrap,Scoutski/bootstrap,copperdesign/bootstrap,vitaligent/4,lemuelbarango/bootstrap,johnajacob/bootstrap,SweetProcess/bootstrap,supergibbs/bootstrap,Hemphill/bootstrap-docs,blockstack/blockstack-bootstrap,igoynawamreh/bootstrap,sealocal/bootstrap