Drop zstd in ubuntu installer

Author: ScIT-Raphael

install/hst-install-ubuntu.sh

@@ -44,7 +44,7 @@ software="apache2 apache2.2-common apache2-suexec-custom apache2-utils
     php$fpm_v-opcache php$fpm_v-pspell php$fpm_v-readline php$fpm_v-xml
     postgresql postgresql-contrib proftpd-basic quota rrdtool rssh spamassassin sudo hestia=${HESTIA_INSTALL_VER}
     hestia-nginx hestia-php vim-common vsftpd whois zip acl sysstat setpriv
-    ipset libonig5 libzip5 openssh-server zstd"
+    ipset libonig5 libzip5 openssh-server"
 
 installer_dependencies="apt-transport-https curl dirmngr gnupg wget software-properties-common ca-certificates"