Remove profile owner network logging notification

Notification should only be shown if the
device owner enables network logging, not
the profile owner.

Bug: 181218676
Test: atest com.android.server.devicepolicy.DevicePolicyManagerTest
      atest com.android.cts.devicepolicy.OrgOwnedProfileOwnerTest#testNetworkLogging
      com.android.cts.devicepolicy.DeviceOwnerTest#testNetworkLoggingWithTwoUsers
      atest com.android.cts.devicepolicy.DeviceOwnerTest#testNetworkLoggingWithSingleUser
Change-Id: Ic088bd9ca9b216aa567bdf8258cb72a913b2a6ed