Remove checks for system_process in TelephonyManager

Instead of throwing exceptions, return the default null/empty/void
behavior.

Test: atest TelephonyManagerTest
Fix: 175881713
Change-Id: Ia15c8183212bc67e74b45fc119b5ef9d4c295c94
Merged-In: Ia15c8183212bc67e74b45fc119b5ef9d4c295c94
1 file changed