Remove CRIU zlinux libc package install (adoptium#4924)

- Since zlinux ubu22 has added support for glibc, remove previous temporary solution

Signed-off-by: LongyuZhang <longyu.zhang@ibm.com>

external/dockerfile_functions.sh

@@ -402,19 +402,6 @@ print_criu_install() {
  "\n\t&& criu -V " \
  "\n" >> ${file}
 
- # zlinux temporarily requires libc package from jammy-proposed repository
- if [[ "${platform}" == *"390"* ]]; then
- echo -e "\nRUN echo \"deb http://ports.ubuntu.com/ubuntu-ports jammy-proposed restricted main multiverse universe\" >> /etc/apt/sources.list.d/ubuntu-jammy-proposed.list \\" \
- "\n\t&& echo \"# Configure apt to allow selective installs of packages from proposed\" > /etc/apt/preferences.d/proposed-updates \\" \
- "\n\t&& echo \"Package: libc6*\" >> /etc/apt/preferences.d/proposed-updates \\" \
- "\n\t&& echo \"Pin: release a=jammy-proposed\" >> /etc/apt/preferences.d/proposed-updates \\" \
- "\n\t&& echo \"Pin-Priority: 400\" >> /etc/apt/preferences.d/proposed-updates \\" \
- "\n\t&& apt-get update \\" \
- "\n\t&& apt-get install -y libc6=2.35-0ubuntu3.4 \\" \
- "\n\t&& /lib/ld64.so.1 --list-tunables " \
- "\n" >> ${file}
- fi
-
  echo -e "\nRUN setcap cap_checkpoint_restore,cap_chown,cap_dac_override,cap_dac_read_search,cap_fowner,cap_fsetid,cap_kill,cap_setgid,cap_setuid,cap_setpcap,cap_net_admin,cap_sys_chroot,cap_sys_ptrace,cap_sys_admin,cap_sys_resource,cap_sys_time,cap_audit_control=eip /usr/sbin/criu \\" \
  "\n\t&& export GLIBC_TUNABLES=glibc.pthread.rseq=0:glibc.cpu.hwcaps=-XSAVEC,-XSAVE,-AVX2,-ERMS,-AVX,-AVX_Fast_Unaligned_Load" \
  "\n" >> ${file}