Update TEST_MAPPING

Test: atest
Change-Id: Iccbf8f7a9bbe44486ef399987fdaf6b943e4cb5d
diff --git a/TEST_MAPPING b/TEST_MAPPING
deleted file mode 100644
index 958c404..0000000
--- a/TEST_MAPPING
+++ /dev/null
@@ -1,2 +0,0 @@
-// Generated by update_crate_tests.py for tests that depend on this crate.
-{}