diff --git a/TEST_MAPPING b/TEST_MAPPING
deleted file mode 100644
index acd1a0c..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  "presubmit": [
-    {
-      "name": "proc-macro2_tests_proc_macro2",
-      "host": true
-    },
-    {
-      "name": "proc-macro2_tests_features",
-      "host": true
-    },
-    {
-      "name": "proc-macro2_tests_marker",
-      "host": true
-    },
-    {
-      "name": "proc-macro2_tests_test",
-      "host": true
-    },
-    {
-      "name": "proc-macro2_tests_marker",
-      "host": true
-    }
-  ]
-}