Remove post_stats from RunTracker (#11068)
Remove post_stats from RunTracker (#11068)

This is more RunTracker code that is no longer used and can be removed entirely.
pantsbuild/pants,benjyw/pants,pantsbuild/pants,pantsbuild/pants,benjyw/pants,jsirois/pants,benjyw/pants,benjyw/pants,pantsbuild/pants,pantsbuild/pants,pantsbuild/pants,jsirois/pants,benjyw/pants,benjyw/pants,benjyw/pants,pantsbuild/pants,jsirois/pants