PhoneProcess crash - setPhoneNumberForSourceIms

Phone process crash when we a new callback for IMS reg state with the cached data (urls)  where the subscription is no longer valid as if a sim is removed.
Bug: b/221080692
Test:
Manual Test
1. Turn on a device
2. Connect to data/wifi
3. Completed to register ims (wait for few seconds to be sure)
4. Make a call/ End the call
5. Remove the sim from the device
6. Check if phone crash on logs

Change-Id: Idc3ec7122410fd10669b38afa679d9a07b58a638