rust: Cleanup build file with rust_defaults.

Test: cd external/rust; mma
Change-Id: I209fa909e3cb6387377450bdf98c17c9c25d35f2
1 file changed
tree: abcd9ff6e1335ec897b8acaf88f8645c011e7b6c
  1. bootstrap/
  2. darwin-x86/
  3. linux-x86/
  4. Android.bp
  5. OWNERS