gn2bp: remove target_host_supported values

We may or may not need to hardcode the host_supported property via
target_host_supported, so leaving it here for now.

Test: n/a
Change-Id: I7e1be6aea159c158b0a6fae1a7a946f6ec7e95df
diff --git a/tools/gn2bp/gen_android_bp b/tools/gn2bp/gen_android_bp
index 9613e41..ee08f42 100755
--- a/tools/gn2bp/gen_android_bp
+++ b/tools/gn2bp/gen_android_bp
@@ -43,11 +43,7 @@
 }
 
 target_host_supported = [
-    '//:libperfetto',
-    '//:libperfetto_client_experimental',
-    '//protos/perfetto/trace:perfetto_trace_protos',
-    '//src/trace_processor:demangle',
-    '//src/trace_processor:trace_processor_shell',
+    # TODO: remove if this is not useful for the cronet build.
 ]
 
 target_vendor_available = [