Merge "Revert "Use mockito-extended in FrameworksNetTests"" am: a6c06af0fa am: 6f6035a29e

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1734372

Change-Id: I8c8a2f734c433c0cf6fe158fcbf26a75a82d0d0a