diff --git a/.m11b2d_a1c_patch.py b/.m11b2d_a1c_patch.py
deleted file mode 100644
index 03fe387..0000000
--- a/.m11b2d_a1c_patch.py
+++ /dev/null
@@ -1,70 +0,0 @@
-# -*- coding: utf-8 -*-
-"""M11b-2d-A1c 外观债清理补丁脚本（一次性工具，不入库）。
-
-只对 tests/test_m11b2_single_tx.py 做三处定点替换，每处必须**恰好命中 1 次**，
-否则整体不写盘并 FAIL 退出——保证「禁改其它任何行」。
-"""
-import io
-import sys
-
-PATH = "tests/test_m11b2_single_tx.py"
-
-EDITS = [
-    # (名称, 原文, 新文)
-    ("1) TestLatency::test_p99_under_200ms vacuous 断言 -> 对 samples 逐次断言",
-     '        samples = []\n'
-     '        for i in range(100):\n'
-     '            res = self.apply("ev-l-%d" % i, states=[su(state={"hp": i})])\n'
-     '            self.assertTrue(res["ok"])\n'
-     '            samples.append(res["latency_ms"])\n',
-
-     '        results = []\n'
-     '        for i in range(100):\n'
-     '            res = self.apply("ev-l-%d" % i, states=[su(state={"hp": i})])\n'
-     '            self.assertTrue(res["ok"])\n'
-     '            results.append(res)\n'
-     '        samples = [r["latency_ms"] for r in results]\n'),
-
-    ("1b) 删除永真空生成器断言，改为逐次断言全部 res 的 sla_breach",
-     '        self.assertFalse(any(r["sla_breach"] for r in []))   # 见下条逐次断言\n',
-
-     '        for r in results:\n'
-     '            self.assertFalse(r["sla_breach"],\n'
-     '                             "latency_ms=%r 触发 sla_breach" % r["latency_ms"])\n'),
-
-    ("2a) for_update 用例中的死表达式 -> 仅保留两条真实断言",
-     '        self.assertEqual("", sqlmod.for_update_clause(SQLITE))\n'
-     '        self.assertIn("pbl_entity_state",\n'
-     '                      " ".join(s for s, _p in self_dummy_log()) if False else "pbl_entity_state")\n',
-
-     '        self.assertEqual("", sqlmod.for_update_clause(SQLITE))\n'),
-
-    ("2b) 删除配套空函数 self_dummy_log()",
-     '\n\ndef self_dummy_log():\n    return []\n',
-     '\n'),
-
-    ("3) assert_atomic_rollback 尾逗号（无意义元组）",
-     '        self.assertEqual(["BEGIN", "ROLLBACK"], k[-tail:]),\n',
-     '        self.assertEqual(["BEGIN", "ROLLBACK"], k[-tail:])\n'),
-]
-
-with io.open(PATH, "r", encoding="utf-8") as f:
-    src = f.read()
-
-orig_len = len(src)
-for name, old, new in EDITS:
-    n = src.count(old)
-    if n != 1:
-        print("FAIL: 锚点命中 %d 次（应为 1）: %s" % (n, name))
-        sys.exit(1)
-    src = src.replace(old, new, 1)
-    print("OK  : %s" % name)
-
-assert "self_dummy_log" not in src, "FAIL: self_dummy_log 残留"
-assert "for r in []" not in src, "FAIL: 空生成器断言残留"
-assert "if False else" not in src, "FAIL: 死表达式残留"
-assert 'k[-tail:]),' not in src, "FAIL: 尾逗号残留"
-
-with io.open(PATH, "w", encoding="utf-8") as f:
-    f.write(src)
-print("DONE: %s  %d -> %d 字符" % (PATH, orig_len, len(src)))