Revert of Implement Element.scrollIntoView for scroll-behavior: smooth.

third_party/WebKit/Source/core/layout/LayoutObject.cpp

Index: third_party/WebKit/Source/core/layout/LayoutObject.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutObject.cpp b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
index 16394927b5771dc1750b5db51656d7548626214b..1f6b5b5071ca4500bf4c890398d96d45b2429af7 100644
--- a/third_party/WebKit/Source/core/layout/LayoutObject.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutObject.cpp
@@ -631,15 +631,13 @@
                                        const ScrollAlignment& align_x,
                                        const ScrollAlignment& align_y,
                                        ScrollType scroll_type,
-                                       bool make_visible_in_visual_viewport,
-                                       ScrollBehavior scroll_behavior) {
+                                       bool make_visible_in_visual_viewport) {
   LayoutBox* enclosing_box = this->EnclosingBox();
   if (!enclosing_box)
     return false;
 
   enclosing_box->ScrollRectToVisible(rect, align_x, align_y, scroll_type,
-                                     make_visible_in_visual_viewport,
-                                     scroll_behavior);
+                                     make_visible_in_visual_viewport);
   return true;
 }