pacman-mirrors: remove mirrorlist.md
pacman-mirrors: remove mirrorlist.md

This information is now managed at https://www.msys2.org/dev/mirrors

waterlan/MSYS2-packages,atom2013/MSYS2-packages,atom2013/MSYS2-packages,waterlan/MSYS2-packages,Alexpux/MSYS2-packages,atom2013/MSYS2-packages,mati865/MSYS2-packages,mati865/MSYS2-packages,JPeterMugaas/MSYS2-packages,JPeterMugaas/MSYS2-packages,JPeterMugaas/MSYS2-packages,JPeterMugaas/MSYS2-packages,Alexpux/MSYS2-packages,Alexpux/MSYS2-packages,waterlan/MSYS2-packages,mati865/MSYS2-packages,atom2013/MSYS2-packages,waterlan/MSYS2-packages,mati865/MSYS2-packages,Alexpux/MSYS2-packages