Omnibox - Code Cleanup - Remove Unnecessary is_history_what_you_typed_match

chrome/browser/ui/webui/omnibox/omnibox.mojom

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // The structures here roughly mirror those from autocomplete.
 
 struct AutocompleteAdditionalInfo {
   string key;
   string value;
 };
 
 struct AutocompleteMatchMojo {
   string? provider_name;
   // Only meaningful if |provider_name| is valid.
   bool provider_done;
   int32 relevance;
   bool deletable;
   string fill_into_edit;
   string inline_autocompletion;
   string destination_url;
   string contents;
   string description;
   int32 transition;
-  bool is_history_what_you_typed_match;
   bool allowed_to_be_default_match;
   string type;
   string? associated_keyword;
   string keyword;
   bool starred;
   int32 duplicates;
   bool from_previous;
   array<AutocompleteAdditionalInfo> additional_info;
 };
 
@@ skipping 17 matching lines @@
                     int32 cursor_position,
                     bool prevent_inline_autocomplete,
                     bool prefer_keyword,
                     int32 page_classification,
                     OmniboxPage page);
 };
 
 interface OmniboxPage {
   HandleNewAutocompleteResult(OmniboxResultMojo result);
 };