Messaging: Remove unused or not required classes and methods

Change-Id: I28ebaecc503ee58c74fc8081162777f861dd4516

src/com/android/messaging/datamodel/media/CustomVCardEntryConstructor.java

@@ -27,11 +27,6 @@ import java.util.List;
 public class CustomVCardEntryConstructor implements VCardInterpreter {
 
     public interface EntryHandler {
-        /**
-         * Called when the parsing started.
-         */
-        void onStart();
-
         /**
          * The method called when one vCard entry is created. Children come before their parent in
          * nested vCard files.
@@ -86,9 +81,6 @@ public class CustomVCardEntryConstructor implements VCardInterpreter {
 
     @Override
     public void onVCardStarted() {
-        for (EntryHandler entryHandler : mEntryHandlers) {
-            entryHandler.onStart();
-        }
     }
 
     @Override