Revert "Add radio_ext aidl to compatibility matrix" am: e5988c99b7

Original change: https://googleplex-android-review.googlesource.com/c/device/google/gs-common/+/24940168

Change-Id: Icd2b5f17786ff300930c266b667aebd306467b95
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>