Uses ThemeHelper#trySetSuwTheme to apply theme for Radactioninterstitial screen.

Screenshot: https://hsv.googleplex.com/6310318165721088

Bug: 399237091
Test: manual test on device.
Flag: EXEMPT flag by PartnerConfigHelper.isGlifExpressiveEnabled
Change-Id: I0f1d8a6ea1cbe8bce79c32b4c039656648f5a99a

src/com/android/settings/notification/RedactionInterstitial.java

@@ -70,8 +70,7 @@ public class RedactionInterstitial extends SettingsActivity {
 
     @Override
     protected void onCreate(Bundle savedInstance) {
-        setTheme(SetupWizardUtils.getTheme(this, getIntent()));
-        ThemeHelper.trySetDynamicColor(this);
+        ThemeHelper.trySetSuwTheme(this);
         super.onCreate(savedInstance);
         findViewById(R.id.content_parent).setFitsSystemWindows(false);
     }