Remove unnecessary code

src/bot.py

@@ -1,7 +1,6 @@
 import os
 import sys
 
-import discord
 from discord.ext import commands
 from dotenv import load_dotenv
 
@@ -14,37 +13,9 @@ class Music(commands.Cog):
   def __init__(self, bot):
     self.bot = bot
 
-  @commands.command()
-  async def join(self, ctx, *, channel: discord.VoiceChannel):
-    """Joins a voice channel"""
-
-    if ctx.voice_client is not None:
-      return await ctx.voice_client.move_to(channel)
-
-    await channel.connect()
-
-  @commands.command()
-  async def play(self, ctx, *, query):
-    """Plays a file from the local filesystem"""
-
-    source = discord.PCMVolumeTransformer(discord.FFmpegPCMAudio(query))
-    ctx.voice_client.play(source, after=lambda e: print(f"Player error: {e}") if e else None)
-
-    await ctx.send(f"Now playing: {query}")
-
-  @commands.command()
-  async def yt(self, ctx, *, url):
-    """Plays from a url (almost anything youtube_dl supports)"""
-
-    async with ctx.typing():
-      player = await YTDLSource.from_url(url, loop=self.bot.loop)
-      ctx.voice_client.play(player, after=lambda e: print(f"Player error: {e}") if e else None)
-
-    await ctx.send(f"Now playing: {player.title}")
-
   @commands.command()
   async def stream(self, ctx, *, url):
-    """Streams from a url (same as yt, but doesn't predownload)"""
+    """Streams from a url"""
 
     async with ctx.typing():
       player = await YTDLSource.from_url(url, loop=self.bot.loop, stream=True)
@@ -52,24 +23,11 @@ class Music(commands.Cog):
 
     await ctx.send(f"Now playing: {player.title}")
 
-  @commands.command()
-  async def volume(self, ctx, volume: int):
-    """Changes the player's volume"""
-
-    if ctx.voice_client is None:
-      return await ctx.send("Not connected to a voice channel.")
-
-    ctx.voice_client.source.volume = volume / 100
-    await ctx.send(f"Changed volume to {volume}%")
-
   @commands.command()
   async def stop(self, ctx):
     """Stops and disconnects the bot from voice"""
-
     await ctx.voice_client.disconnect()
 
-  @play.before_invoke
-  @yt.before_invoke
   @stream.before_invoke
   async def ensure_voice(self, ctx):
     if ctx.voice_client is None: