Revert "Move libstatssocket to shared."

This reverts commit 8fd5557e.

Reason for revert: breakage https://android-build.googleplex.com/builds/quarterdeck?branch=aosp-master&target=run_bluetooth_host_native_tests&lkgb=6474123&lkbb=6474183&fkbb=6474137

Bug: 156046846
Test: m on full-eng

Merged-In: Ibfa25c0fe7874ba08157a5ec43601c5cf8305723
Change-Id: I616ebd21f0b339794f45945361986ab9b338014a