Delete unused getContextMenuManager() methods.

chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
index 87b94cfb8d45904be448dfb8f2b88033ebc3ae23..d0c64e43ff6678218cd187d2348a45aeb0a05628 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/NewTabPageView.java
@@ -152,13 +152,6 @@ public class NewTabPageView extends FrameLayout implements TileGroup.Observer {
          * displayed to the user.
          */
         boolean isCurrentPage();
-
-        /**
-         * @return The context menu manager. Will be {@code null} if the {@link NewTabPageView} is
-         * not done initialising.
-         */
-        @Nullable
-        ContextMenuManager getContextMenuManager();
     }
 
     /**
@@ -899,11 +892,6 @@ public class NewTabPageView extends FrameLayout implements TileGroup.Observer {
         return mRecyclerView.getScrollPosition();
     }
 
-    /** @return the context menu manager. */
-    public ContextMenuManager getContextMenuManager() {
-        return mContextMenuManager;
-    }
-
     // TileGroup.Observer interface.
 
     @Override