SuggestionsSource cleanup: Remove TaskRunnerForRequestPath implementation

chrome/browser/search/suggestions/suggestions_ui.cc

Index: chrome/browser/search/suggestions/suggestions_ui.cc
diff --git a/chrome/browser/search/suggestions/suggestions_ui.cc b/chrome/browser/search/suggestions/suggestions_ui.cc
index 17cf2ad978df1bfd02bd8a583097318a2665cde1..85566ba895595d8e9e588ee6805fa37859f6e6cd 100644
--- a/chrome/browser/search/suggestions/suggestions_ui.cc
+++ b/chrome/browser/search/suggestions/suggestions_ui.cc
@@ -123,8 +123,6 @@ class SuggestionsSource : public content::URLDataSource {
       const content::ResourceRequestInfo::WebContentsGetter& wc_getter,
       const content::URLDataSource::GotDataCallback& callback) override;
   std::string GetMimeType(const std::string& path) const override;
-  scoped_refptr<base::SingleThreadTaskRunner> TaskRunnerForRequestPath(
-      const std::string& path) const override;
 
  private:
   ~SuggestionsSource() override;
@@ -232,12 +230,6 @@ std::string SuggestionsSource::GetMimeType(const std::string& path) const {
   return "text/html";
 }
 
-scoped_refptr<base::SingleThreadTaskRunner>
-SuggestionsSource::TaskRunnerForRequestPath(const std::string& path) const {
-  // This can be accessed from the IO thread.
-  return content::URLDataSource::TaskRunnerForRequestPath(path);
-}
-
 void SuggestionsSource::OnThumbnailsFetched(RequestContext* context) {
   std::unique_ptr<RequestContext> context_deleter(context);