remove old submodule
remove old submodule

gbwey/persistent,jcristovao/persistent,mkscrg/persistent,meteficha/persistent,jcristovao/persistent,junjihashimoto/persistent,andrewthad/persistent,mitchellwrosen/persistent,nakaji-dayo/persistent,plow-technologies/persistent,superduper/persistent,mitchellwrosen/persistent,greydot/persistent,rdnetto/persistent,pseudonom/persistent,gbwey/persistentold,yesodweb/persistent,gbwey/persistent,mitchellwrosen/persistent,gbwey/persistentold,paul-rouse/persistent,gbwey/persistent,junjihashimoto/persistent,mkscrg/persistent,greydot/persistent,superduper/persistent,andrewthad/persistent,erikd/persistent,nakaji-dayo/persistent,andrewthad/persistent,jasonzoladz/persistent,superduper/persistent,creichert/persistent,mkscrg/persistent,greydot/persistent,meteficha/persistent,nakaji-dayo/persistent,pseudonom/persistent,jcristovao/persistent,jasonzoladz/persistent,bitemyapp/persistent,rdnetto/persistent,psibi/persistent,naushadh/persistent,jasonzoladz/persistent,meteficha/persistent