Mainline API cleanup

TelephonyProvider is not part of mainline and it still
 imports these classes.

Test: Treehugger
Bug: 147834876
Change-Id: I2438b3adb6248df7770327a31bbca5797bcfd336
diff --git a/src/com/android/providers/telephony/TelephonyProvider.java b/src/com/android/providers/telephony/TelephonyProvider.java
index 2e0b972..ff80011 100644
--- a/src/com/android/providers/telephony/TelephonyProvider.java
+++ b/src/com/android/providers/telephony/TelephonyProvider.java
@@ -114,8 +114,6 @@
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.compat.IPlatformCompat;
-import com.android.internal.telephony.PhoneConstants;
-import com.android.internal.telephony.uicc.UiccController;
 import com.android.internal.util.XmlUtils;
 import android.service.carrier.IApnSourceService;