delete the installation warning for CentOS4/RHEL4

it went out of support five years ago

support-files/rpm/server-postin.sh

@@ -55,32 +55,6 @@ fi
 SETARGETDIR=/etc/selinux/targeted/src/policy
 SEDOMPROG=$SETARGETDIR/domains/program
 SECONPROG=$SETARGETDIR/file_contexts/program
-if [ -f /etc/redhat-release ] ; then 
-   if grep '\(Red Hat Enterprise Linux ..\|CentOS\) release 4' \
-     /etc/redhat-release >/dev/null 2>&1; then
-     echo
-     echo
-     echo 'Notes regarding SELinux on this platform:'
-     echo '========================================='
-     echo
-     echo 'The default policy might cause server startup to fail because it is '
-     echo 'not allowed to access critical files. In this case, please update '
-     echo 'your installation. '
-     echo
-     echo 'The default policy might also cause inavailability of SSL related '
-     echo 'features because the server is not allowed to access /dev/random '
-     echo 'and /dev/urandom. If this is a problem, please do the following: '
-     echo 
-     echo '  1) install selinux-policy-targeted-sources from your OS vendor'
-     echo '  2) add the following two lines to '$SEDOMPROG/mysqld.te':'
-     echo '       allow mysqld_t random_device_t:chr_file read;'
-     echo '       allow mysqld_t urandom_device_t:chr_file read;'
-     echo '  3) cd to '$SETARGETDIR' and issue the following command:'
-     echo '       make load'
-     echo
-     echo
-   fi
-fi
 
 if [ -x /usr/sbin/semodule ] ; then
   /usr/sbin/semodule -i /usr/share/mysql/SELinux/mariadb.pp