Hide bubble in (New)ReturnToCallController.tearDown().

There is the case that onDisconnect() is not called but InCallService is unbind. Currently we only hide bubble when call disconnected. We should also do it when InCallService is unbind.

Test: NewReturnToCallControllerTest, ReturnToCallControllerTest
PiperOrigin-RevId: 178029862
Change-Id: I6806c5c80adb06317f09019bdf3420b462225945
2 files changed