[DO NOT MERGE] Revert "Make libstatssocket a shared_lib"

This reverts commit 29512fbf.

Specifically, we're reverting
https://googleplex-android-review.git.corp.google.com/c/platform/system/core/+/11419425/-1..1

Test: Local 'm -j71 out/soong/.intermediates/frameworks/base/tools/stats_log_api_gen/libstatslog/android_arm64_armv8-a_shared_com.android.bluetooth.updatable/unstripped/libstatslog.so'
Bug: 156091657
Change-Id: I79b4206beaa162078c76f9323a061923ec6ca0c6