Clean up rust_test_host TEST_MAPPING after default update am: e038f42a7e

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libsqlite3-sys/+/1582658

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I594e5b2f094b79d50b74ce1576378425711fcb06
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 7bc6ed2..6716814 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -2,10 +2,6 @@
 {
   "presubmit": [
     {
-      "host": true,
-      "name": "libsqlite3-sys_host_test_src_lib"
-    },
-    {
       "name": "libsqlite3-sys_device_test_src_lib"
     }
   ]