Revert "Add one more test for VPN usage stats."

This reverts commit 1419b0b20e4b079bfa66662d042b4dc35fb22d78.

Reason for revert: This change has been implicated in 4-way deadlocks as seen in b/134244752.

Bug: 134244752
Change-Id: I64b48d575f2e6ec4cb7d2d100a859a30af0501dc
1 file changed