Remove getAllVpnInfo from ConnectivityServiceMock.

See http://ag/6580635 for context.

Test: atest FrameworksNetTests
Bug: 126245192
Change-Id: I02aa2d86aca9cef18024b66e3ca6fd2f5bf39f2b
Merged-In: If2ea101c1a69097118dff451fb352ed1d709d4fd
1 file changed