Revert back to getString to avoid issues with translation.

Only visible change is that the words "phone is too hot" will no longer be bolded.

Bug: 193517045
Test: b/193517045

Change-Id: Ia39666f2d8ddb43a03901cab3f64d781879a7355
diff --git a/src/com/android/services/telephony/DisconnectCauseUtil.java b/src/com/android/services/telephony/DisconnectCauseUtil.java
index 9c89e9e..706cea7 100644
--- a/src/com/android/services/telephony/DisconnectCauseUtil.java
+++ b/src/com/android/services/telephony/DisconnectCauseUtil.java
@@ -787,7 +787,7 @@
             default:
                 break;
         }
-        return resourceId == null ? "" : context.getResources().getText(resourceId);
+        return resourceId == null ? "" : context.getResources().getString(resourceId);
     }
 
     private static boolean isRadioOffForThermalMitigation(int phoneId) {