Revert "Wait for IP Addresses cleared before transition to StoppedState."

This reverts commit 45e2744137fd26d9468adfb7690538d579251791.

Reason for revert: per release note review, got some critical comments for example, we should remove the timeout message and consider how to improve the state machine usage.

Bug: Bug: 240616892
Test: atest NetworkStackIntegrationTests
Change-Id: I84ed417c1d5ebe0e58957f7bf539afa0af7a0871
3 files changed