Clean Up NetworkManagementService Tests

Cleaning up tests, so I can easily add more for restricted networking
mode.
I merged the NetworkManagementInternalTests with the
NetworkManagementServiceTests.

Test: atest NetworkManagementServiceTest
Change-Id: If8c3cc1883cfb2524eeb78e23165fc868130f0e7
1 file changed
tree: b6c4c5d1ec7c31683581374361d3c74e0e4bdc95
  1. core/
  2. services/
  3. tests/