fix(tests): idempotence enforcement for forget_vpn()

[shubhsingh5901]

Summary

This PR makes the suggested changes for integration test.

As per #200 the forget and forget_vpn methods are idempotent, and in case of no-existent profile/connection it should not fail.

Previously error was expected in these cases. But after #200 we should get Ok( ( ) ).

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Changes

• Updated test_forget_nonexistent_vpn test to expect Ok( ( ) ), and prevent panic in case of Ok response.
• Updated forget_returns_no_saved_connection_error test to not panic in case of Ok repsonse.

[cachebag]

LGTM otherwise! Thank you!

[cachebag]

Thanks! Could you ensure this change is contained to one commit? It's not desirable to apply commit suggestions via GitHub, you should always amend commits off your branch locally.

[cachebag]

Thanks!