Remove finacial app sms access temp implementation due to security

concern.

Test: m -j150 ExtServices && adb install -r ${OUT}/system/priv-app/ExtServices/ExtServices.apk
      atest FinancialSmsServiceImplTest

Bug: 111207447
Change-Id: I9f9c7b9b61014daddabbac9d59a471cd8d711d6e

packages/ExtServices/src/android/ext/services/sms/FinancialSmsServiceImpl.java

@@ -17,14 +17,10 @@ package android.ext.services.sms;
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.database.Cursor;
 import android.database.CursorWindow;
-import android.net.Uri;
 import android.os.Bundle;
 import android.service.sms.FinancialSmsService;
-import android.util.Log;
 
-import java.util.ArrayList;
 /**
  * Service to provide financial apps access to sms messages.
  */
@@ -36,45 +32,6 @@ public class FinancialSmsServiceImpl extends FinancialSmsService {
     @Nullable
     @Override
     public CursorWindow onGetSmsMessages(@NonNull Bundle params) {
-        ArrayList<String> columnNames = params.getStringArrayList(KEY_COLUMN_NAMES);
-        if (columnNames == null || columnNames.size() <= 0) {
-            return null;
-        }
-
-        Uri inbox = Uri.parse("content://sms/inbox");
-
-        try (Cursor cursor = getContentResolver().query(inbox, null, null, null, null);
-                CursorWindow window = new CursorWindow("FinancialSmsMessages")) {
-            int messageCount = cursor.getCount();
-            if (messageCount > 0 && cursor.moveToFirst()) {
-                window.setNumColumns(columnNames.size());
-                for (int row = 0; row < messageCount; row++) {
-                    if (!window.allocRow()) {
-                        Log.e(TAG, "CursorWindow ran out of memory.");
-                        return null;
-                    }
-                    for (int col = 0; col < columnNames.size(); col++) {
-                        String columnName = columnNames.get(col);
-                        int inboxColumnIndex = cursor.getColumnIndexOrThrow(columnName);
-                        String inboxColumnValue = cursor.getString(inboxColumnIndex);
-                        boolean addedToCursorWindow = window.putString(inboxColumnValue, row, col);
-                        if (!addedToCursorWindow) {
-                            Log.e(TAG, "Failed to add:"
-                                    + inboxColumnValue
-                                    + ";column:"
-                                    + columnName);
-                            return null;
-                        }
-                    }
-                    cursor.moveToNext();
-                }
-            } else {
-                Log.w(TAG, "No sms messages.");
-            }
-            return window;
-        } catch (Exception e) {
-            Log.e(TAG, "Failed to get sms messages.");
-            return null;
-        }
+        return null;
     }
 }