Update TEST_MAPPING

Test: None

Bug: 236006683
Change-Id: Ib588b8afe49b856ee631458dc636db3bbd8daa36
diff --git a/TEST_MAPPING b/TEST_MAPPING
index a16a674..15c97a1 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -14,11 +14,6 @@
       "path": "external/rust/crates/url"
     }
   ],
-  "postsubmit": [
-    {
-      "name": "doh_unit_test"
-    }
-  ],
   "presubmit": [
     {
       "name": "doh_unit_test"