Skip loading contextual cards if legacy cards are used

This stops a jarring animation that occurs when returning to the
settings top level when legacy contextual cards are enabled and
shown at the top of the top level list,

Bug: 142936956
Test: Manual
Change-Id: I43605adf6f1bf63cc40157ac97c8e3295dd3cd99
diff --git a/src/com/android/settings/homepage/contextualcards/ContextualCardManager.java b/src/com/android/settings/homepage/contextualcards/ContextualCardManager.java
index a941fdb..60a63ec 100644
--- a/src/com/android/settings/homepage/contextualcards/ContextualCardManager.java
+++ b/src/com/android/settings/homepage/contextualcards/ContextualCardManager.java
@@ -37,6 +37,7 @@
 import androidx.loader.app.LoaderManager;
 import androidx.loader.content.Loader;
 
+import com.android.settings.R;
 import com.android.settings.homepage.contextualcards.conditional.ConditionalCardController;
 import com.android.settings.homepage.contextualcards.logging.ContextualCardLogUtils;
 import com.android.settings.homepage.contextualcards.slices.SliceContextualCardRenderer;
@@ -119,6 +120,10 @@
     }
 
     void loadContextualCards(LoaderManager loaderManager) {
+        if (mContext.getResources().getBoolean(R.bool.config_use_legacy_suggestion)) {
+            Log.w(TAG, "Legacy suggestion contextual card enabled, skipping contextual cards.");
+            return;
+        }
         mStartTime = System.currentTimeMillis();
         final CardContentLoaderCallbacks cardContentLoaderCallbacks =
                 new CardContentLoaderCallbacks(mContext);