Remove rbenv-gem-rehash
Remove rbenv-gem-rehash

It's no longer available on Homebrew
scottmuc/sprout-wrap,compozed/sprout-wrap,elijah/sprout-wrap,scottmuc/sprout-wrap,raebot/sprout-wrap,compozed/sprout-wrap,iad-dev/sprout-wrap,scottmuc/workstation,pivotal-sprout/sprout-wrap,pivotal-sydney/sprout-wrap-sydney,dnadesign/sprout-wrap,dnadesign/sprout-wrap,raebot/sprout-wrap,wendorf/sprout-wrap,trinitronx/sprout-wrap,cloudfoundry-incubator/sprout-capi,cloudfoundry-incubator/sprout-capi,dnadesign/sprout-wrap,scottmuc/workstation,pivotal-sprout/sprout-wrap,dnadesign/sprout-wrap,iad-dev/sprout-wrap,pivotal/sprout-wrap-sydney,trinitronx/sprout-wrap