Revert "Test Fix SettingRobolectricTest Fail"

This reverts commit 818f77cd1f.

Reason for revert: Underlying issue fixed in ag/23454315.

Bug: b/275023433
Test: atest SettingsGlobalRoboTests

Change-Id: I1af272efd00b3c5bd35310512f5712d5d1c7d834

tests/robotests/src/com/android/settings/wifi/WifiPrimarySwitchPreferenceControllerTest.java

@@ -46,7 +46,6 @@ import com.android.settingslib.PrimarySwitchPreference;
 import com.android.settingslib.core.instrumentation.MetricsFeatureProvider;
 
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.Mock;
@@ -97,7 +96,6 @@ public class WifiPrimarySwitchPreferenceControllerTest {
         assertThat(mController.isAvailable()).isTrue();
     }
 
-    @Ignore
     @Test
     @Config(qualifiers = "mcc999")
     public void testWifiPrimarySwitch_ifDisabled_shouldNotBeShown() {