Make framework-statsd stubs use the new defaults

Makes it convenient to change all stubs from a central place.
Also remove the framework-statsd-defaults that were only used
in a single place.

Bug: 149293194
Test: m framework-statsd-stubs{public,system,module_libs_}api
Change-Id: Ib2e01cddfaceb7f24fd2e60c3a365a79a035bcae