remove another debian sid/13 fix

Author: bedroge

containers/build-or-download-cvmfs-debs.sh

@@ -8,12 +8,6 @@ apt-get install -y wget lsb-release
 distro=$(lsb_release -si | tr [:upper:] [:lower:])
 release=$(lsb_release -sr)
 
-# lsb_release -sr prints n/a for debian sid, replace it by 13
-if [ "${distro}" = "debian" ] && [ "${release}" = "n/a" ]
-then
-    release=13
-fi
-
 os="${distro}${release}"
 
 if [ "$arch" = "riscv64" ]