Revert of Bring RFH/RVH unit tests closer to reality of how RF/RV are initialized

content/browser/frame_host/navigation_controller_impl_unittest.cc

Index: content/browser/frame_host/navigation_controller_impl_unittest.cc
diff --git a/content/browser/frame_host/navigation_controller_impl_unittest.cc b/content/browser/frame_host/navigation_controller_impl_unittest.cc
index baf63d6863a2fdaad2bb14ebff87252e0e34ac31..a8a1f6c8b21ca696d3bbe86dc30840c95319ade3 100644
--- a/content/browser/frame_host/navigation_controller_impl_unittest.cc
+++ b/content/browser/frame_host/navigation_controller_impl_unittest.cc
@@ -2824,10 +2824,6 @@
       0, NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY, &entries);
   ASSERT_EQ(0u, entries.size());
 
-  // Ensure the RenderFrame is initialized before simulating events coming from
-  // it.
-  main_test_rfh()->InitializeRenderFrameIfNeeded();
-
   // Before navigating to the restored entry, it should have a restore_type
   // and no SiteInstance.
   entry = our_controller.GetEntryAtIndex(0);