Remove suggestions notified as invalid

ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm

Index: ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm
diff --git a/ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm b/ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm
index 3754aa9ff72f0f36b8e098e34d786d9f22279726..25a4d97419857a9596cf1e5679b6fef0f1dc162d 100644
--- a/ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm
+++ b/ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm
@@ -40,6 +40,7 @@ const NSTimeInterval kAnimationDuration = 0.35;
 
 @synthesize suggestionCommandHandler = _suggestionCommandHandler;
 @synthesize collectionUpdater = _collectionUpdater;
+@dynamic collectionViewModel;
 
 #pragma mark - Public
 
@@ -64,7 +65,10 @@ const NSTimeInterval kAnimationDuration = 0.35;
 
     [self.collectionView deleteItemsAtIndexPaths:@[ indexPath ]];
   }
-                                completion:nil];
+      completion:^(BOOL) {
+        // The context menu could be displayed for the delete entry.
+        [self.suggestionCommandHandler dismissContextMenu];
+      }];
 }
 
 #pragma mark - UIViewController