remove mentions of opting in (#5976)
remove mentions of opting in (#5976)

we have removed opt-in to scanning
anweiss/docker.github.io,johnstep/docker.github.io,JimGalasyn/docker.github.io,thaJeztah/docker.github.io,thaJeztah/docker.github.io,JimGalasyn/docker.github.io,anweiss/docker.github.io,JimGalasyn/docker.github.io,anweiss/docker.github.io,thaJeztah/docker.github.io,docker/docker.github.io,londoncalling/docker.github.io,johnstep/docker.github.io,johnstep/docker.github.io,thaJeztah/docker.github.io,londoncalling/docker.github.io,londoncalling/docker.github.io,JimGalasyn/docker.github.io,JimGalasyn/docker.github.io,londoncalling/docker.github.io,docker/docker.github.io,anweiss/docker.github.io,thaJeztah/docker.github.io,johnstep/docker.github.io,anweiss/docker.github.io,docker/docker.github.io,johnstep/docker.github.io,londoncalling/docker.github.io,docker/docker.github.io,docker/docker.github.io