Convert ENABLE_FLOATING_SEARCH_BAR to aconfig.

Flag: com.android.launcher3.floating_search_bar
Test: Build (existing code unchanged)
Bug: 346408388
Fix: 346406981
Change-Id: Ia8d15ceb1b2b4754657844d602cb95b9555a4ece

src/com/android/launcher3/DeviceProfile.java

@@ -53,7 +53,6 @@ import androidx.core.content.res.ResourcesCompat;
 
 import com.android.launcher3.CellLayout.ContainerType;
 import com.android.launcher3.DevicePaddings.DevicePadding;
-import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.icons.DotRenderer;
 import com.android.launcher3.icons.IconNormalizer;
 import com.android.launcher3.model.data.ItemInfo;
@@ -714,7 +713,7 @@ public class DeviceProfile {
         overviewTaskThumbnailTopMarginPx =
                 enableOverviewIconMenu() ? 0 : overviewTaskIconSizePx + overviewTaskMarginPx;
         // Don't add margin with floating search bar to minimize risk of overlapping.
-        overviewActionsTopMarginPx = FeatureFlags.ENABLE_FLOATING_SEARCH_BAR.get() ? 0
+        overviewActionsTopMarginPx = Flags.floatingSearchBar() ? 0
                 : res.getDimensionPixelSize(R.dimen.overview_actions_top_margin);
         overviewPageSpacing = res.getDimensionPixelSize(R.dimen.overview_page_spacing);
         overviewActionsButtonSpacing = res.getDimensionPixelSize(