AIDL: disable Rust explicitly

Now that it's enabled by default, because this
doesn't compile in Rust.

Bug: 321267339
Test: m
Change-Id: I01e0af965827944ba2b4b168a6e8d6c4cf81cfff
Merged-In: I01e0af965827944ba2b4b168a6e8d6c4cf81cfff
(cherry picked from commit 62105fb264c79095a58313563e00c4d4cb18f866)
1 file changed