Remove audit check for XZ
Remove audit check for XZ

Any formula with a URL that ends in ".xz" now gets this dependency
automatically, so this check no longer does anything.

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