Don't rebuild exim

src/freedombone-upgrade

@@ -96,7 +96,7 @@ if [ -d "$PROJECT_DIR" ]; then
             exit 453536
         fi
 
-        rebuild_exim_with_socks
+        #rebuild_exim_with_socks
         apt-get -yq -t stretch-backports install certbot
         email_install_tls
         email_disable_chunking