Remove unused Contextual Search methods.

chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/Layout.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/Layout.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/Layout.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/Layout.java
index 9be24e6040dc0919e5398a3dbe4fbaa66d22226f..aeb178e79c7401e3f08e1b94eeb027bf1ed39ea0 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/Layout.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/layouts/Layout.java
@@ -19,7 +19,6 @@ import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.SuppressFBWarnings;
 import org.chromium.chrome.browser.Tab;
 import org.chromium.chrome.browser.compositor.LayerTitleCache;
-import org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchPanel;
 import org.chromium.chrome.browser.compositor.layouts.ChromeAnimation.Animatable;
 import org.chromium.chrome.browser.compositor.layouts.ChromeAnimation.Animation;
 import org.chromium.chrome.browser.compositor.layouts.components.LayoutTab;
@@ -636,23 +635,6 @@ public abstract class Layout implements TabContentManager.ThumbnailChangeListene
     }
 
     /**
-     * Returns whether or not the native Contextual Search layout is showing. Layouts supporting
-     * Contextual Search should override this method and return "true", indicating that
-     * the layout has already been swapped from an Android View to a native cc::Layer.
-     * @return Whether or not the Contextual Search bar is showing.
-     */
-    public boolean isContextualSearchLayoutShowing() {
-        return false;
-    }
-
-    /**
-     * @return The {@link ContextualSearchPanel} or "null" if there is none for this layout.
-     */
-    public ContextualSearchPanel getContextualSearchPanel() {
-        return null;
-    }
-
-    /**
      * @param currentOffset The current top controls offset in dp.
      * @return {@link Float#NaN} if no offset should be used, or a value in dp if the top controls
      *         offset should be overridden.