Revert "libprocessgroup: Add I/O scheduler attributes to task_profiles.json" am: 9fe04000

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/23221374



Change-Id: Ia7d18be6e89785b5a0b9c591ea0d3f02b1e2885f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>