fixup! feat(rlstats): add unsubscribe command

Author: Jackenmen

rlstats/rlstats.py

@@ -345,9 +345,30 @@ async def player_select(
             return
 
         self.player_select.options.pop(deleted_option_idx)
-        await confirm_view.delete_interaction.response.edit_message(
-            content=self.message_content, view=self
-        )
+        if self.player_select.options:
+            channel_data = self.guild_data[self.current_channel_id]
+            ids = channel_data[raw_platform]["ids"]
+            while True:
+                try:
+                    ids.remove(player_id)
+                except ValueError:
+                    break
+        else:
+            del self.guild_data[self.current_channel_id]
+            await self.change_channel("")
+
+        if self.guild_data:
+            await confirm_view.delete_interaction.response.edit_message(
+                content=self.message_content, view=self
+            )
+        else:
+            await confirm_view.delete_interaction.response.edit_message(
+                content=(
+                    "There are no more active profile update"
+                    " subscriptions in this server."
+                ),
+                view=None,
+            )
 
         channel_id = int(self.current_channel_id)
         sub_count_scope = self.cog.config.channel_from_id(channel_id).subscription_count