Before this change,
- eSIM will be erased twice, one with result callback and one without
result callback.
- During reset, ResetNetworkConfirm could interrupted by subscription
invalid event, which happens during reset.
After this change,
- eSIM will be erased only once, result callback is registered
separately.
- Explicit exit the page when reset finish, and ignore the subscription
invalid event after reset started.
Bug: 328293508
Flag: EXEMPT bug fix
Test: manual - dry run the reset
Test: ResetNetworkConfirmTest
Change-Id: I51395a556b1c8775192d5897a87f13046c042578
b70c805717