Merge "Remove ppp" into main am: 436e52284b

Original change: https://android-review.googlesource.com/c/platform/external/ppp/+/2849360

Change-Id: I1db7a70d2c0616da931117f17a7bd972966bd685
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 4b825dc642cb6eb9a060e54bf8d69288fbee4904

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