Remove java_api_contribution modules from .bp files

java_api_contribution modules are dynamically generated from droidstubs
modules or java_sdk_library_import, and is not a user-facing module.
Defining this module is a .bp file is a no-op.

Test: m nothing
Bug: 322242515
Change-Id: Ie8146230206e700902cb6e9f0fbffb1d7b08c7ff
1 file changed