Remove unused code

ios/chrome/browser/ui/content_suggestions/identifier/content_suggestions_section_information.h

Index: ios/chrome/browser/ui/content_suggestions/identifier/content_suggestions_section_information.h
diff --git a/ios/chrome/browser/ui/content_suggestions/identifier/content_suggestions_section_information.h b/ios/chrome/browser/ui/content_suggestions/identifier/content_suggestions_section_information.h
index ef81f55aa52147e386c924bc96074e843380ce59..38bed73cbc5d0ab55a8bcc5f577f4285d4b7b047 100644
--- a/ios/chrome/browser/ui/content_suggestions/identifier/content_suggestions_section_information.h
+++ b/ios/chrome/browser/ui/content_suggestions/identifier/content_suggestions_section_information.h
@@ -20,9 +20,8 @@ typedef NS_ENUM(NSInteger, ContentSuggestionsSectionLayout) {
 // When adding a new kind of suggestions, add a new corresponding section. The
 // ordering is not persisted between launch, reordering is possible.
 typedef NS_ENUM(NSInteger, ContentSuggestionsSectionID) {
-  ContentSuggestionsSectionBookmarks = 0,
-  ContentSuggestionsSectionArticles = 1,
-  ContentSuggestionsSectionReadingList = 2,
+  ContentSuggestionsSectionArticles = 0,
+  ContentSuggestionsSectionReadingList,
 
   // Do not use this. It will trigger a DCHECK.
   // Do not add value after this one.