Removed allowance for some platforms to fail pg_upgrade due to openss…

…l library version changes during upgrades

Ticket: ENT-11853
Changelog: none

packaging/common/cfengine-hub/postinstall.sh

@@ -711,13 +711,6 @@ do_migration() {
       exit 0 # exits only from (...)
     fi
     cf_console echo "Migration using pg_upgrade failed."
-    # skip ubuntu-16, debian-9 and debian-12 since there is an expected failure there
-    # check for "/var/cfengine/state/pg/backup/bin/postgres" failed: cannot execute
-    if { [ "$BUILT_ON_OS" = "debian" ] && [ "$BUILT_ON_OS_VERSION" = "9" ]; } || \
-       { [ "$BUILT_ON_OS" = "debian" ] && [ "$BUILT_ON_OS_VERSION" = "12" ]; } || \
-       { [ "$BUILT_ON_OS" = "ubuntu" ] && [ "$BUILT_ON_OS_VERSION" = "16" ]; }; then
-      true # no-op
-    else
       # here pg_upgrade probably said something like
       # Consult the last few lines of "/var/cfengine/state/pg/data/pg_upgrade_output.d/20230913T150025.959/log/pg_upgrade_server.log" for the probable cause of the failure.
       cf_console echo "Showing last lines of any related log files:"