DO NOT MERGE Don't build hello_world_test for Host on P

Host gtest support is dropping to Q, let's not have it enabled for
our sample device gtest in P.

Bug: 80298359
Test: make clean; atest hello_world_test
Change-Id: Ib5a5c26bb1c1d03c7eed8768536eb4ad24f90b39

tests/example/native/Android.bp

diff --git a/tests/example/native/Android.bp b/tests/example/native/Android.bp
index 17dfb3d..83045d1 100644
--- a/tests/example/native/Android.bp
+++ b/tests/example/native/Android.bp
@@ -23,5 +23,4 @@
 
     tags: ["tests"],
     test_suites: ["device-tests"],
-    host_supported: true,
 }