From e900598a327ca8a0db7a6d5a11cadf0a15829ecb Mon Sep 17 00:00:00 2001
From: Jake Lishman <jake.lishman@ibm.com>
Date: Wed, 18 Oct 2023 18:39:31 +0100
Subject: [PATCH] Fix unnecessary statement

---
 qiskit/circuit/singleton.py | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/qiskit/circuit/singleton.py b/qiskit/circuit/singleton.py
index 4a446704df46..57b2ea879883 100644
--- a/qiskit/circuit/singleton.py
+++ b/qiskit/circuit/singleton.py
@@ -250,7 +250,6 @@ class XGate(Gate, metaclass=_SingletonMeta, overrides=_SingletonGateOverrides):
 from __future__ import annotations
 
 import functools
-import typing
 
 from .instruction import Instruction
 from .gate import Gate
@@ -401,9 +400,6 @@ def __call__(cls, *args, _force_mutable=False, **kwargs):
         return super().__call__(*args, **kwargs)
 
 
-_InstructionT = typing.TypeVar("_InstructionT", bound=Instruction)
-
-
 class _SingletonBase(metaclass=_SingletonMeta):
     """Base class of all the user-facing (library-author-facing) singleton classes such as
     :class:`SingletonGate`.