Revert "stats: use libosmocore rate counter for in/out_stream.err_ts_counter"

This reverts commit 7181cc1f026a0b63a061296aba4e10a9cadaf2c8.
The tests are broken on i686, arm (non 64bit systems).

Change-Id: I15f3c78f8410d709733ed5692ba94ba17559d7e1
6 files changed