Remove libstatslog dependency from libinput

This removes the stats_write call for stylus prediction metrics, along with the libstatslog dependency, as a temporary fix for the bootanimation linker error (b/336188973).

Test: bootanimation linker error is no longer present.

Bug: 338106546
Bug: 336188973

Change-Id: Icfa8b477609ed4c160d9af2d1bdb31536c7bf082