[Discord] Remove no longer used Bot.wait_for_yes_or_no method

Discord/bot.py

@@ -1191,80 +1191,6 @@ def raw_reaction_check(payload):
             raise asyncio.TimeoutError
         return done.pop().result()
 
-    async def wait_for_yes_or_no(
-        self, *, channel = None, message = None, user = None, timeout = None,
-        accept_text = True, use_reactions = False, cleanup = True
-    ):
-        def message_check(message):
-            if channel and message.channel != channel:
-                return False
-            if user and message.author != user:
-                return False
-            if message.content not in ("yes", "no", 'y', 'n'):
-                return False
-            return True
-
-        def raw_reaction_check(payload):
-            if payload.message_id != message.id:
-                return False
-            if user and payload.user_id != user.id:
-                return False
-            if not payload.emoji.is_unicode_emoji():
-                return False
-            if payload.emoji.name not in (
-                '\N{HEAVY CHECK MARK}', '\N{HEAVY MULTIPLICATION X}'
-            ):
-                return False
-            return True
-
-        to_wait_for = []
-
-        if accept_text:
-            to_wait_for.append(self.wait_for("message", check = message_check))
-
-        if message and use_reactions:
-            # TODO: Handle unable to add reactions
-            await message.add_reaction('\N{HEAVY CHECK MARK}')
-            await message.add_reaction('\N{HEAVY MULTIPLICATION X}')
-            to_wait_for.append(
-                self.wait_for("raw_reaction_add", check = raw_reaction_check)
-            )
-            to_wait_for.append(
-                self.wait_for(
-                    "raw_reaction_remove", check = raw_reaction_check
-                )
-            )
-
-        done, pending = await asyncio.wait(
-            to_wait_for, return_when = asyncio.FIRST_COMPLETED,
-            timeout = timeout
-        )
-        for task in pending:
-            task.cancel()
-
-        if message and use_reactions and cleanup:
-            await message.remove_reaction(
-                '\N{HEAVY CHECK MARK}', message.guild.me
-            )
-            await message.remove_reaction(
-                '\N{HEAVY MULTIPLICATION X}', message.guild.me
-            )
-
-        if not done:
-            raise asyncio.TimeoutError
-
-        result = done.pop().result()
-        if isinstance(result, discord.Message):
-            if cleanup:
-                await self.attempt_delete_message(result)
-            return result.content in ("yes", 'y')
-        if isinstance(result, discord.RawReactionActionEvent):
-            if cleanup:
-                member = await message.guild.fetch_member(result.user_id)
-                await message.remove_reaction(result.emoji.name, member)
-                # TODO: Handle no permission to remove reaction
-            return result.emoji.name == '\N{HEAVY CHECK MARK}'
-
     # Override Context class
     async def get_context(self, message, *, cls = Context):
         ctx = await super().get_context(message, cls = cls)