Remove unused pkg/system.IsIoTCore()
Remove unused pkg/system.IsIoTCore()

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

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