Apply suggestions from code review

Co-authored-by: dgw <dgw@technobabbl.es>

sopel/bot.py

@@ -594,25 +594,22 @@ def rate_limit_info(
     ) -> tuple[bool, Optional[str]]:
         if trigger.admin or rule.is_unblockable():
             return False, None
+
         nick = trigger.nick
         is_channel = trigger.sender and not trigger.sender.is_nick()
         channel = trigger.sender if is_channel else None
 
-        user_metrics = rule.get_user_metrics(nick)
-        channel_metrics = rule.get_channel_metrics(channel)
-        global_metrics = rule.get_global_metrics()
-
         at_time = trigger.time
-        if rule.is_user_rate_limited(trigger.nick, at_time):
+        if rule.is_user_rate_limited(nick, at_time):
             template = rule.user_rate_template
             rate_limit_type = "user"
             rate_limit = rule.user_rate_limit
-            metrics = user_metrics
+            metrics = rule.get_user_metrics(nick)
         elif is_channel and rule.is_channel_rate_limited(channel, at_time):
             template = rule.channel_rate_template
             rate_limit_type = "channel"
             rate_limit = rule.channel_rate_limit
-            metrics = channel_metrics
+            metrics = rule.get_channel_metrics(channel)
         elif rule.is_global_rate_limited(at_time):
             template = rule.global_rate_template
             rate_limit_type = "global"