Drop fish completions for now-deleted `brew prune` command
Drop fish completions for now-deleted `brew prune` command

reitermarkus/brew,konqui/brew,nandub/brew,MikeMcQuaid/brew,vitorgalvao/brew,mahori/brew,EricFromCanada/brew,sjackman/homebrew,vitorgalvao/brew,MikeMcQuaid/brew,konqui/brew,EricFromCanada/brew,sjackman/homebrew,claui/brew,MikeMcQuaid/brew,reitermarkus/brew,claui/brew,mahori/brew,MikeMcQuaid/brew,vitorgalvao/brew,claui/brew,konqui/brew,konqui/brew,JCount/brew,nandub/brew,vitorgalvao/brew,reitermarkus/brew,sjackman/homebrew,sjackman/homebrew,reitermarkus/brew,JCount/brew,mahori/brew,claui/brew,EricFromCanada/brew,Homebrew/brew,mahori/brew,Homebrew/brew,Homebrew/brew,nandub/brew,nandub/brew,EricFromCanada/brew,JCount/brew,Homebrew/brew,JCount/brew