Update TEST_MAPPING

Test: None

Bug: 236006683
Change-Id: I29bcc156d983233f197ffeae15de24af4470c3a1
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 9784fe7..9284a57 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -5,11 +5,6 @@
       "path": "external/rust/crates/vulkano"
     }
   ],
-  "postsubmit": [
-    {
-      "name": "parking_lot_core_test_src_lib"
-    }
-  ],
   "presubmit": [
     {
       "name": "parking_lot_core_test_src_lib"