Jenkinsfile: remove check for arch-specific Dockerfiles
Jenkinsfile: remove check for arch-specific Dockerfiles

The main Dockerfile is multi-arch now.

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

paralin/docker,pradipd/moby,nalind/docker,Ramzec/docker,flavio/docker,ibuildthecloud/docker,nawawi/docker,konstruktoid/docker-upstream,kolyshkin/moby,jameszhan/docker,Ramzec/docker,docker/docker,ibuildthecloud/docker,cpuguy83/docker,AkihiroSuda/docker,justincormack/docker,jimjag/docker,moul/docker,flavio/docker,jimjag/docker,gnailuy/docker,estesp/docker,docker/docker,jameszhan/docker,djs55/docker,trebonian/docker,trebonian/docker,moby/moby,yosifkit/docker,jthelin/docker,tmp6154/docker,bearstech/moby,kojiromike/docker,nalind/docker,thaJeztah/docker,tmp6154/docker,moul/docker,tmp6154/docker,moul/docker,yosifkit/docker,jthelin/docker,konstruktoid/docker-1,kolyshkin/moby,jvanz/docker,kojiromike/docker,thaJeztah/docker,gnailuy/docker,jameszhan/docker,estesp/docker,dims/docker,justincormack/docker,justincormack/docker,konstruktoid/docker-1,jimjag/docker,nalind/docker,Mokolea/docker,ibuildthecloud/docker,moby/moby,bearstech/moby,thaJeztah/docker,flavio/docker,dims/docker,gnailuy/docker,SvenDowideit/docker,pradipd/moby,vdemeester/docker,thaJeztah/docker,cpuguy83/docker,mahak/docker,moby/moby,nawawi/docker,djs55/docker,ibuildthecloud/docker,jvanz/docker,cpuguy83/docker,bearstech/moby,dims/docker,djs55/docker,AkihiroSuda/docker,paralin/docker,vdemeester/docker,Ramzec/docker,nawawi/docker,vdemeester/docker,Mokolea/docker,konstruktoid/docker-upstream,kolyshkin/moby,docker/docker,bearstech/moby,AkihiroSuda/docker,paralin/docker,yongtang/docker,yosifkit/docker,pradipd/moby,mahak/docker,konstruktoid/docker-1,paralin/docker,flavio/docker,Ramzec/docker,jvanz/docker,yongtang/docker,mahak/docker,trebonian/docker,nalind/docker,moul/docker,SvenDowideit/docker,jimjag/docker,yosifkit/docker,konstruktoid/docker-upstream,ibuildthecloud/docker,konstruktoid/docker-upstream,estesp/docker,nawawi/docker,Mokolea/docker,yongtang/docker,trebonian/docker,SvenDowideit/docker,mahak/docker,Mokolea/docker,moby/moby,kojiromike/docker,AkihiroSuda/docker,gnailuy/docker,cpuguy83/docker