Revert "Use autogenerated SysUiStatsLog for statsd logging"

This reverts commit a315ec5f.

Reason for revert: This CL should've been in the same topic as the sharedlib. Currently sharedlib is reverted, hence without this change ub-launcher3-master build is broken.

Change-Id: I80d529c1facb3245ad81f2a63f472337a2e1d9fa