Revert "Use the SubId in the TM.getNetworkType if Valid"

This reverts commit f36fee3cf764838aa8b1f59142e82049e4cbacb1.

Reason for revert: 133129040

Bug: 133129040
Merged-In: I9a974018d4155426b1050a4b80b82f4bf4a9d996
Change-Id: Ib6f9a4e461a7e1cfa6c4648bd289a8f92475423e
(cherry picked from commit af62adcb6c328ef682237ec027793fc8e27782d5)
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index b722b79..dab1e6f 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -2446,7 +2446,21 @@
      * @return the NETWORK_TYPE_xxxx for current data connection.
      */
     public @NetworkType int getNetworkType() {
-        return getDataNetworkType();
+       try {
+           ITelephony telephony = getITelephony();
+           if (telephony != null) {
+               return telephony.getNetworkType();
+            } else {
+                // This can happen when the ITelephony interface is not up yet.
+                return NETWORK_TYPE_UNKNOWN;
+            }
+        } catch(RemoteException ex) {
+            // This shouldn't happen in the normal case
+            return NETWORK_TYPE_UNKNOWN;
+        } catch (NullPointerException ex) {
+            // This could happen before phone restarts due to crashing
+            return NETWORK_TYPE_UNKNOWN;
+        }
     }
 
     /**
@@ -2477,9 +2491,23 @@
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE)
-    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P)
+    @UnsupportedAppUsage
     public int getNetworkType(int subId) {
-        return getDataNetworkType(subId);
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony != null) {
+                return telephony.getNetworkTypeForSubscriber(subId, getOpPackageName());
+            } else {
+                // This can happen when the ITelephony interface is not up yet.
+                return NETWORK_TYPE_UNKNOWN;
+            }
+        } catch (RemoteException ex) {
+            // This shouldn't happen in the normal case
+            return NETWORK_TYPE_UNKNOWN;
+        } catch (NullPointerException ex) {
+            // This could happen before phone restarts due to crashing
+            return NETWORK_TYPE_UNKNOWN;
+        }
     }
 
     /**