Remove "result2" in AccountManagerService

I think result2 here is to filter out other value returned from getAccountRemovalAllowed.
As the annotation shown in getAccountRemovalAllowed in AbstractAccountAuthenticator,
the result will only contain KEY_INTENT or KEY_BOOLEAN_RESULT or
KEY_ERROR_CODE and KEY_ERROR_MESSAGE. KEY_INTENT has been judged at the beginning of onResult,
KEY_ERROR_CODE and KEY_ERROR_MESSAGE seem extraneous when back to AccountManager,
so i believe that it's ok to use result directly here other than get one more Bundle object.
(tip: if result2 is nessesary, its name doesn't looks formal)

Bug:N/A
Test:N/A

Change-Id: I4e352baa1e74ac680398c328db0c4bc873ba528b
Signed-off-by: tiansiming <tiansiming@xiaomi.com>

services/core/java/com/android/server/accounts/AccountManagerService.java

@@ -2233,12 +2233,10 @@ public class AccountManagerService
                         Log.v(TAG, getClass().getSimpleName() + " calling onResult() on response "
                                 + response);
                     }
-                    Bundle result2 = new Bundle();
-                    result2.putBoolean(AccountManager.KEY_BOOLEAN_RESULT, removalAllowed);
                     try {
-                        response.onResult(result2);
+                        response.onResult(result);
                     } catch (RemoteException e) {
-                        // ignore
+                        Slog.e(TAG, "Error calling onResult()", e);
                     }
                 }
             }