Clean up rust_test_host TEST_MAPPING after default update am: 0eed533e99 am: 8104f5e7e5 am: 37bd55757f

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/rustc-hash/+/1585228

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Icd4bde5794eb7551b6aca6541faaef1baa691f7a
diff --git a/TEST_MAPPING b/TEST_MAPPING
index e8a301c..31eb554 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -2,17 +2,9 @@
 {
   "presubmit": [
     {
-      "host": true,
-      "name": "rustc-hash_host_test_src_lib"
-    },
-    {
       "name": "rustc-hash_device_test_src_lib"
     },
     {
-      "host": true,
-      "name": "libsqlite3-sys_host_test_src_lib"
-    },
-    {
       "name": "libsqlite3-sys_device_test_src_lib"
     }
   ]