[User Switcher] Remove manage user in phone dialog

Removes the manage user icon in the user switcher dialog on the phone.
This is because the user settings button serves this function.

Bug: 254257455
Test: Turn off fullscreen user switcher flag with `$adb shell cmd statusbar flag 506 off` and then observe the manage user icon. Observe that it is gone after changes. Manage user remains in the bouncer and is not a visible item in full screen user switcher.
Change-Id: Id86f21dd0f182cfb81ec08e32a6a9240563272c4

packages/SystemUI/src/com/android/systemui/qs/tiles/UserDetailView.java

@@ -26,6 +26,7 @@ import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
 import com.android.internal.logging.MetricsLogger;
@@ -43,6 +44,9 @@ import com.android.systemui.statusbar.policy.BaseUserSwitcherAdapter;
 import com.android.systemui.statusbar.policy.UserSwitcherController;
 import com.android.systemui.user.data.source.UserRecord;
 
+import java.util.List;
+import java.util.stream.Collectors;
+
 import javax.inject.Inject;
 
 /**
@@ -83,6 +87,13 @@ public class UserDetailView extends PseudoGridView {
         private final FalsingManager mFalsingManager;
         private @Nullable UserSwitchDialogController.DialogShower mDialogShower;
 
+        @NonNull
+        @Override
+        protected List<UserRecord> getUsers() {
+            return super.getUsers().stream().filter(
+                    userRecord -> !userRecord.isManageUsers).collect(Collectors.toList());
+        }
+
         @Inject
         public Adapter(Context context, UserSwitcherController controller,
                 UiEventLogger uiEventLogger, FalsingManager falsingManager) {

packages/SystemUI/src/com/android/systemui/statusbar/policy/BaseUserSwitcherAdapter.kt

@@ -43,11 +43,7 @@ protected constructor(
     }
 
     override fun getCount(): Int {
-        return if (controller.isKeyguardShowing) {
-            users.count { !it.isRestricted }
-        } else {
-            users.size
-        }
+        return users.size
     }
 
     override fun getItem(position: Int): UserRecord {

packages/SystemUI/tests/src/com/android/systemui/qs/tiles/UserDetailViewAdapterTest.kt

@@ -33,6 +33,7 @@ import com.android.systemui.qs.QSUserSwitcherEvent
 import com.android.systemui.statusbar.policy.UserSwitcherController
 import com.android.systemui.user.data.source.UserRecord
 import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
@@ -139,6 +140,11 @@ class UserDetailViewAdapterTest : SysuiTestCase() {
         clickableTest(false, false, mUserDetailItemView, true)
     }
 
+    @Test
+    fun testManageUsersIsNotAvailable() {
+        assertNull(adapter.users.find { it.isManageUsers })
+    }
+
     private fun createUserRecord(current: Boolean, guest: Boolean) =
         UserRecord(
             UserInfo(0 /* id */, "name", 0 /* flags */),