[MEP] EuiccManager API modifications to support carrier apps

Remove deprecated tag from switchToSubscription API. Partially reverts the changes to switchToSubscription API with ag/16232869

Bug: 214055002
Test: manual, atest FrameworksTelephonyTests
Change-Id: I6a802ea0c85ff749b09745f629bc1a80f30ed3b9
2 files changed