Get rid of unused variable LayoutBlockFlow::AddVisualOverflowFromInlineChildren()

This patch gets rid of unused variable |end_padding| from |LayoutBlockFlow::
AddVisualOverflowFromInlineChildren()| for improving code health.

Change-Id: Ib2c578a9815c22a197e8b9eb409839fefbc53735
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2228025
Auto-Submit: Yoshifumi Inoue <yosin@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Commit-Queue: Yoshifumi Inoue <yosin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774981}

third_party/blink/renderer/core/layout/layout_block_flow_line.cc

@@ -2403,13 +2403,6 @@ bool LayoutBlockFlow::GeneratesLineBoxesForInlineChild(LayoutObject* inline_obj)
 }
 
 void LayoutBlockFlow::AddVisualOverflowFromInlineChildren() {
-  LayoutUnit end_padding = HasOverflowClip() ? PaddingEnd() : LayoutUnit();
-  // FIXME: Need to find another way to do this, since scrollbars could show
-  // when we don't want them to.
-  if (HasOverflowClip() && !end_padding && GetNode() &&
-      IsRootEditableElement(*GetNode()) && StyleRef().IsLeftToRightDirection())
-    end_padding = LayoutUnit(1);
-
   if (const NGPaintFragment* paint_fragment = PaintFragment()) {
     for (const NGPaintFragment* child : paint_fragment->Children()) {
       if (child->HasSelfPaintingLayer())