Revert "formula_versions: handle uncommitted formulae."
Revert "formula_versions: handle uncommitted formulae."

nandub/brew,konqui/brew,Homebrew/brew,tonyg/homebrew,zmwangx/brew,maxim-belkin/brew,EricFromCanada/brew,Homebrew/brew,konqui/brew,mgrimes/brew,gregory-nisbet/brew,vitorgalvao/brew,alyssais/brew,nandub/brew,vitorgalvao/brew,nandub/brew,MikeMcQuaid/brew,Homebrew/brew,nandub/brew,sjackman/homebrew,Linuxbrew/brew,claui/brew,reelsense/brew,zmwangx/brew,EricFromCanada/brew,rwhogg/brew,muellermartin/dist,mahori/brew,maxim-belkin/brew,bfontaine/brew,amar-laksh/brew_sudo,hanxue/linuxbrew,ilovezfs/brew,reitermarkus/brew,konqui/brew,DomT4/brew,pseudocody/brew,sjackman/homebrew,konqui/brew,pseudocody/brew,vitorgalvao/brew,palxex/brew,maxim-belkin/brew,jmsundar/brew,Linuxbrew/brew,JCount/brew,reelsense/brew,JCount/brew,claui/brew,gregory-nisbet/brew,aw1621107/brew,reelsense/brew,Linuxbrew/brew,mahori/brew,amar-laksh/brew_sudo,aw1621107/brew,mahori/brew,DomT4/brew,reitermarkus/brew,ilovezfs/brew,claui/brew,JCount/brew,hanxue/linuxbrew,ilovezfs/brew,EricFromCanada/brew,EricFromCanada/brew,reitermarkus/brew,DomT4/brew,mahori/brew,alyssais/brew,DomT4/brew,muellermartin/dist,palxex/brew,alyssais/brew,rwhogg/brew,hanxue/linuxbrew,gregory-nisbet/brew,sjackman/homebrew,vitorgalvao/brew,zmwangx/brew,amar-laksh/brew_sudo,aw1621107/brew,MikeMcQuaid/brew,claui/brew,jmsundar/brew,mgrimes/brew,Linuxbrew/brew,sjackman/homebrew,bfontaine/brew,mgrimes/brew,MikeMcQuaid/brew,reitermarkus/brew,bfontaine/brew,tonyg/homebrew,Homebrew/brew,pseudocody/brew,palxex/brew,jmsundar/brew,muellermartin/dist,MikeMcQuaid/brew,tonyg/homebrew,JCount/brew,rwhogg/brew