Enable async-assert invariant probes by default in CI (#27461)

test/registered/spec/test_constrained_decoding_spec_reasoning.py

@@ -3,7 +3,6 @@ import unittest
 
 import openai
 
-from sglang.srt.environ import envs
 from sglang.srt.utils import kill_process_tree
 from sglang.test.ci.ci_register import register_cuda_ci
 from sglang.test.test_utils import (
@@ -51,13 +50,12 @@ class ServerWithGrammar(CustomTestCase):
             "--speculative-num-draft-tokens=8",
         ]
 
-        with envs.SGLANG_ENABLE_ASYNC_ASSERT.override(True):
-            cls.process = popen_launch_server(
-                cls.model,
-                cls.base_url,
-                timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
-                other_args=launch_args,
-            )
+        cls.process = popen_launch_server(
+            cls.model,
+            cls.base_url,
+            timeout=DEFAULT_TIMEOUT_FOR_SERVER_LAUNCH,
+            other_args=launch_args,
+        )
 
     @classmethod
     def tearDownClass(cls):