Remove check "skip"

Is only used in the comparison if empty then skip

Author: jaapmarcus

bin/v-update-mail-templates

@@ -29,7 +29,6 @@ source_conf "$HESTIA/conf/hestia.conf"
 check_args '1' "$#" '[RESTART]' '[SKIP]'
 is_format_valid 'restart'
 
-is_boolean_format_valid "$skip" 'skip'
 # Update templates
 cp -rf $HESTIA_INSTALL_DIR/templates/mail $HESTIA/data/templates/