Remove hi cog.

cogs/commands/__init__.py

@@ -3,7 +3,6 @@
 from nextcord.ext import commands
 
 from cogs.commands.birthday import BirthdayCog
-from cogs.commands.hi import HiCog
 
 
 # This function will be called when this extension is loaded.
@@ -11,4 +10,3 @@ from cogs.commands.hi import HiCog
 def setup(bot: commands.Bot) -> None:
     """Add all command classes to bot."""
     bot.add_cog(BirthdayCog())
-    bot.add_cog(HiCog(bot))