[Rspamd] Remove unnecessary set_metric_action in tag script

data/conf/rspamd/lua/rspamd.local.lua

@@ -221,7 +221,6 @@ rspamd_config:register_symbol({
 
       if action ~= 'no action' and action ~= 'greylist' then
         rspamd_logger.infox("skipping tag handler for action: %s", action)
-        task:set_metric_action('default', action)
         return true
       end