requirement: make deprecated stuff unsupported.
requirement: make deprecated stuff unsupported.

EricFromCanada/brew,Linuxbrew/brew,nandub/brew,reelsense/brew,MikeMcQuaid/brew,mgrimes/brew,hanxue/linuxbrew,maxim-belkin/brew,claui/brew,vitorgalvao/brew,nandub/brew,reelsense/brew,DomT4/brew,DomT4/brew,Homebrew/brew,EricFromCanada/brew,JCount/brew,reitermarkus/brew,ilovezfs/brew,Linuxbrew/brew,mgrimes/brew,ilovezfs/brew,EricFromCanada/brew,Homebrew/brew,reitermarkus/brew,Linuxbrew/brew,reelsense/brew,Homebrew/brew,maxim-belkin/brew,Homebrew/brew,vitorgalvao/brew,JCount/brew,konqui/brew,sjackman/homebrew,sjackman/homebrew,MikeMcQuaid/brew,sjackman/homebrew,JCount/brew,DomT4/brew,DomT4/brew,nandub/brew,reitermarkus/brew,hanxue/linuxbrew,alyssais/brew,konqui/brew,alyssais/brew,mahori/brew,mgrimes/brew,claui/brew,MikeMcQuaid/brew,EricFromCanada/brew,MikeMcQuaid/brew,maxim-belkin/brew,mahori/brew,mahori/brew,claui/brew,sjackman/homebrew,reitermarkus/brew,alyssais/brew,hanxue/linuxbrew,Linuxbrew/brew,ilovezfs/brew,vitorgalvao/brew,claui/brew,konqui/brew,JCount/brew,mahori/brew,vitorgalvao/brew,konqui/brew,nandub/brew