Revert "Temporarily ignoring testSecuredGuestUserResumeToSameUser"

This reverts commit 7984d105f256c9deb3e8044e4fdd2e53f55ba10d.

Reason for revert: We can enable it now. And see if it fails on pre-submit.

Bug: 183519890
Test: atest AndroidCarApiTest:android.car.apitest.CarUserManagerTest
Change-Id: I7d8e1c732a9bbad3a22b4cab26853689daef1512
diff --git a/tests/android_car_api_test/src/android/car/apitest/CarUserManagerTest.java b/tests/android_car_api_test/src/android/car/apitest/CarUserManagerTest.java
index 03cea19..d66e3dd 100644
--- a/tests/android_car_api_test/src/android/car/apitest/CarUserManagerTest.java
+++ b/tests/android_car_api_test/src/android/car/apitest/CarUserManagerTest.java
@@ -32,7 +32,6 @@
 
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
-import org.junit.Ignore;
 import org.junit.Test;
 
 public final class CarUserManagerTest extends CarMultiUserTestBase {
@@ -118,7 +117,6 @@
      * resume to same guest user.
      */
     @Test
-    @Ignore("b/190865475")
     public void testSecuredGuestUserResumeToSameUser() throws Exception {
         // Create new guest user
         UserInfo guestUser = createGuest();