remove openprovider doc (#3431)
remove openprovider doc (#3431)


Nitrokey/dongleauth,Jawshy/twofactorauth,bjorno/twofactorauth,Nitrokey/dongleauth,cez81/twofactorauth,cez81/twofactorauth,jdavis/twofactorauth,jdavis/twofactorauth,rj175/twofactorauth,Nitrokey/dongleauth,vgarmash/twofactorauth,vgarmash/twofactorauth,rugk/twofactorauth,rugk/twofactorauth,Jawshy/twofactorauth,bceasydns/twofactorauth,rj175/twofactorauth,rj175/twofactorauth,Jawshy/twofactorauth,vgarmash/twofactorauth,cez81/twofactorauth,bjorno/twofactorauth,bjorno/twofactorauth,rugk/twofactorauth,bceasydns/twofactorauth,jdavis/twofactorauth,Jawshy/twofactorauth,bceasydns/twofactorauth