Update ci/scripts/r_windows_build.sh

Co-authored-by: Neal Richardson <[email protected]>

ci/scripts/r_windows_build.sh

@@ -23,21 +23,6 @@ set -ex
 # Make sure it is absolute and exported
 export ARROW_HOME="$(cd "${ARROW_HOME}" && pwd)"
 
-# Uncomment L38-41 if you're testing a new rtools dependency that hasn't yet sync'd to CRAN
-# curl https://raw.githubusercontent.com/r-windows/rtools-packages/master/pacman.conf > /etc/pacman.conf
-# cp /etc/pacman.conf /etc/pacman.conf.bak
-# curl https://raw.githubusercontent.com/r-windows/rtools-packages/master/pacman.conf > /etc/pacman.conf
-# cat /etc/pacman.conf
-# curl -OSsl "http://repo.msys2.org/msys/x86_64/msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz"
-# pacman -U --noconfirm msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz && rm msys2-keyring-r21.b39fb11-1-any.pkg.tar.xz
-# pacman --noconfirm -Scc
-
-# pacman --noconfirm -Syy
-# pacman --noconfirm -S ${MINGW_PACKAGE_PREFIX}-cmake
-
-#Try reverting to the original pacman.conf
-# cp /etc/pacman.conf.bak /etc/pacman.conf
-# cat /etc/pacman.conf
 pacman --noconfirm -Syy
 
 RWINLIB_LIB_DIR="lib"