Remove FrameworksCoreTests dep on framework-all

Make it use framework-statsd directly rather than framework-all.
Note that this is a problem on its own: the problematic tests
should be separated from the monolith tests and moved into the statsd
dir.

Also clamp down on framework-all visibility to avoid anyone else
addinga dependency on this problematic library.

Bug: 149928788
Bug: 149906971
Test: m
Change-Id: Ic819b90911220032130c3f8a01b612edd7fa3ecc