Merge "Remove unused module dx-docs" am: 45364b9c55

Original change: https://android-review.googlesource.com/c/platform/dalvik/+/1838793

Change-Id: I50f966ec6e45fbba6d860f84590336abde63777f
tree: e58ab58afe594eab47e42b02f78c9f29eda1f164
  1. dexgen/
  2. docs/
  3. dx/
  4. opcode-gen/
  5. tools/
  6. Android.bp
  7. CleanSpec.mk
  8. NOTICE
  9. OWNERS