Revert "Add a job to prune UsageStats data on package removals."

This reverts commit ece1fa0ba1dfa3d6ded43e74639ee04ef814a4c2.

Reason for revert: b/144982898

Change-Id: I95834b3e6b28d569a28088357ab6bfb4d3a0c7ff
9 files changed