testutil: fix WithExperimental also setting "init"
testutil: fix WithExperimental also setting "init"

Looks like this was overlooked in the review of the PR that added
this; e401b88e59e098745744917c555d549f08353e6d

There is a separate option for `WithInit`, so this option should not
automatically enable it when starting  a daemon with experimental enabled.

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

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