AIDL: disable Rust explicitly

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

Bug: 321267339
Test: m
Change-Id: I8ca3f9d7884a5b9dc48ac724e9fbb7bdfac7e3d5
Merged-In: I8ca3f9d7884a5b9dc48ac724e9fbb7bdfac7e3d5
(cherry picked from commit 2e58fd36e51cfd02723cd5bfb54fc53166861f9f)
2 files changed