Cleaned up dead code

Renamed the scanning state to retrying. Removed the
old retrying dead code.

Test: Telephony sanity tests
Bug: 73659459

Change-Id: I54849bafbd0d05206e67636f0717b4b833a5e229

config/hiddenapi-greylist.txt

@@ -2869,7 +2869,6 @@ Lcom/android/internal/telephony/dataconnection/DataConnection;->mNetworkInfo:Lan
 Lcom/android/internal/telephony/dataconnection/DataConnection;->mPhone:Lcom/android/internal/telephony/Phone;
 Lcom/android/internal/telephony/dataconnection/DataConnection;->mRilRat:I
 Lcom/android/internal/telephony/dataconnection/DataConnection;->notifyAllOfConnected(Ljava/lang/String;)V
-Lcom/android/internal/telephony/dataconnection/DataConnection;->notifyAllOfDisconnectDcRetrying(Ljava/lang/String;)V
 Lcom/android/internal/telephony/dataconnection/DataConnection;->notifyDisconnectCompleted(Lcom/android/internal/telephony/dataconnection/DataConnection$DisconnectParams;Z)V
 Lcom/android/internal/telephony/dataconnection/DataConnection;->onConnect(Lcom/android/internal/telephony/dataconnection/DataConnection$ConnectionParams;)V
 Lcom/android/internal/telephony/dataconnection/DataConnection;->tearDownData(Ljava/lang/Object;)V
@@ -2937,7 +2936,6 @@ Lcom/android/internal/telephony/DctConstants$State;->DISCONNECTING:Lcom/android/
 Lcom/android/internal/telephony/DctConstants$State;->FAILED:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DctConstants$State;->IDLE:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DctConstants$State;->RETRYING:Lcom/android/internal/telephony/DctConstants$State;
-Lcom/android/internal/telephony/DctConstants$State;->SCANNING:Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DctConstants$State;->values()[Lcom/android/internal/telephony/DctConstants$State;
 Lcom/android/internal/telephony/DefaultPhoneNotifier;->mRegistry:Lcom/android/internal/telephony/ITelephonyRegistry;
 Lcom/android/internal/telephony/DriverCall$State;->ACTIVE:Lcom/android/internal/telephony/DriverCall$State;

telephony/java/com/android/internal/telephony/DctConstants.java

@@ -24,7 +24,7 @@ public class DctConstants {
     /**
      * IDLE: ready to start data connection setup, default state
      * CONNECTING: state of issued startPppd() but not finish yet
-     * SCANNING: data connection fails with one apn but other apns are available
+     * RETRYING: data connection fails with one apn but other apns are available
      *           ready to start data connection on other apns (before INITING)
      * CONNECTED: IP connection is setup
      * DISCONNECTING: Connection.disconnect() has been called, but PDP
@@ -34,19 +34,16 @@ public class DctConstants {
      *
      * getDataConnectionState() maps State to DataState
      *      FAILED or IDLE : DISCONNECTED
-     *      RETRYING or CONNECTING or SCANNING: CONNECTING
+     *      RETRYING or CONNECTING: CONNECTING
      *      CONNECTED : CONNECTED or DISCONNECTING
      */
     public enum State {
         IDLE,
         CONNECTING,
-        SCANNING,
+        RETRYING,
         CONNECTED,
         DISCONNECTING,
         FAILED,
-        RETRYING        // After moving retry manager to ApnContext, we'll never enter this state!
-                        // Todo: Remove this state and other places that use this state and then
-                        // rename SCANNING to RETRYING.
     }
 
     public enum Activity {
@@ -81,7 +78,6 @@ public class DctConstants {
     public static final int EVENT_RESTART_RADIO = BASE + 26;
     public static final int EVENT_CLEAN_UP_ALL_CONNECTIONS = BASE + 29;
     public static final int EVENT_ICC_CHANGED = BASE + 33;
-    public static final int EVENT_DISCONNECT_DC_RETRYING = BASE + 34;
     public static final int EVENT_DATA_SETUP_COMPLETE_ERROR = BASE + 35;
     public static final int CMD_SET_ENABLE_FAIL_FAST_MOBILE_DATA = BASE + 36;
     public static final int CMD_ENABLE_MOBILE_PROVISIONING = BASE + 37;