Remove unneeded code in NavigatorImpl::OnBeginNavigation.

content/browser/frame_host/navigator_impl.cc

Index: content/browser/frame_host/navigator_impl.cc
diff --git a/content/browser/frame_host/navigator_impl.cc b/content/browser/frame_host/navigator_impl.cc
index c677f372f5767093b64cb134621ef84a3f4c3e10..893d12a2ff89e41a8a191fa33ac38f72bec0bdd3 100644
--- a/content/browser/frame_host/navigator_impl.cc
+++ b/content/browser/frame_host/navigator_impl.cc
@@ -979,17 +979,6 @@ void NavigatorImpl::OnBeginNavigation(
   NavigationRequest* ongoing_navigation_request =
       frame_tree_node->navigation_request();
 
-  // Client redirects during the initial history navigation of a child frame
-  // should take precedence over the history navigation (despite being renderer-
-  // initiated).  See https://crbug.com/348447 and https://crbug.com/691168.
-  if (ongoing_navigation_request &&
-      ongoing_navigation_request->request_params()
-          .is_history_navigation_in_new_child) {
-    // Preemptively clear this local pointer before deleting the request.
-    ongoing_navigation_request = nullptr;
-    frame_tree_node->ResetNavigationRequest(false, true);
-  }
-
   // The renderer-initiated navigation request is ignored iff a) there is an
   // ongoing request b) which is browser or user-initiated and c) the renderer
   // request is not user-initiated.