Delete com.android.cronet from base_system

No concrete plan to ship Cronet for now

Merged-In ID is from an unrelated change in this project that happens to be merged into branches downstream of tm-dev.

Bug: 230548501
Test: TH
Merged-In: Ifc6051cd9422b3f5c52322833d9a7f5e8263f857
Change-Id: I0ee3418a0def50a61251af665fbded869e0329e7