Merge framework-connectivity impl and stub targets

Instead of using api_only: true, use a single java_sdk_library to
generate both framework-connectivity stubs and
framework-connectivity.impl.

Original change (project moved):
I76d7cf1ba31a3f38ae6b9facbf1b668860c8c165

Bug: 183600168
Test: m
Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f
Change-Id: I07d8c4c92c91939b8e8890fdb5db517b75faee2c
2 files changed