Remove duplicate postsubmit.

Presubmits already get ran on every postsubmit build.

Bug: 233084498
Change-Id: Ia9af32e8355c37047d810f364379b352699af76d
diff --git a/TEST_MAPPING b/TEST_MAPPING
index c4c79c6..85072a7 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -75,9 +75,6 @@
       "keywords": ["netd-device-kernel-4.9", "netd-device-kernel-4.14"]
     },
     {
-      "name": "libnetworkstats_test"
-    },
-    {
       "name": "FrameworksNetDeflakeTest"
     }
   ],