Remove completed TODO in android/visibility.go

Remove fixed TODO(b/130796911) as it is marked fixed.
Defaults_visibility prop works as intended.

Test: none
Change-Id: I4277e9b8886f9196f6265aa63ec29dca68f5aca7
diff --git a/android/visibility.go b/android/visibility.go
index 5955133..3130135 100644
--- a/android/visibility.go
+++ b/android/visibility.go
@@ -47,7 +47,6 @@
 //   the dependency. If it cannot then an error is reported.
 //
 // TODO(b/130631145) - Make visibility work properly with prebuilts.
-// TODO(b/130796911) - Make visibility work properly with defaults.
 
 // Patterns for the values that can be specified in visibility property.
 const (