Revert "test-bot: try to handle bad UTF-8 output."
Revert "test-bot: try to handle bad UTF-8 output."

This reverts commit b4c2b8f3b4b58ef10ab8f748c743a3352f4cee7d.

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