misc(moderation): removed useless return

moderation/moderation.py

@@ -163,8 +163,8 @@ class Moderation(commands.Cog):
             cursor.execute(insert_query, insert_values)
             database.commit()
             self.logger.info("MySQL Table (moderation_%s) created for %s (%s)", guild.id, guild.name, guild.id)
+        cursor.close()
         database.close()
-        return "Complete!"
 
     async def check_conf(self, config: list):
         """Checks if any required config options are not set."""