Remove unused imports in tests (GH-14518)

diff --git a/Lib/test/test_peepholer.py b/Lib/test/test_peepholer.py
index b5f85bd..c90a532 100644
--- a/Lib/test/test_peepholer.py
+++ b/Lib/test/test_peepholer.py
@@ -1,10 +1,9 @@
 import dis
 import unittest
-import types
-import textwrap
 
 from test.bytecode_helper import BytecodeTestCase
 
+
 def count_instr_recursively(f, opname):
     count = 0
     for instr in dis.get_instructions(f):