Merge "init: clean up unused Service[List]::post_data" into main am: a7eb62c8

Original change: https://android-review.googlesource.com/c/platform/system/core/+/3226764



Change-Id: I09f5010f3416b753ebf147e9f9d51237b88cea96
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>