[3.10] bpo-45056: Remove trailing unused constants from co_consts (GH-28109) (GH-28125)

(cherry picked from commit 55c4a92fc1abfe388335071f1d64b3addfa5793f)

Co-authored-by: Inada Naoki <songofacandy@gmail.com>
diff --git a/Lib/test/test_dis.py b/Lib/test/test_dis.py
index d03aa75..edda967 100644
--- a/Lib/test/test_dis.py
+++ b/Lib/test/test_dis.py
@@ -689,10 +689,7 @@ def get_disassembly(self, func, lasti=-1, wrapper=True, **kwargs):
 if sys.flags.optimize:
     code_info_consts = "0: None"
 else:
-    code_info_consts = (
-    """0: 'Formatted details of methods, functions, or code.'
-   1: None"""
-)
+    code_info_consts = "0: 'Formatted details of methods, functions, or code.'"
 
 code_info_code_info = f"""\
 Name:              code_info
@@ -816,7 +813,6 @@ def f(c=c):
 Constants:
    0: 0
    1: 1
-   2: None
 Names:
    0: x"""