Remove leftover commented code from web_frame_widget_base.cc

Change-Id: I8a8725cc11f7c2280be0efc94f74dc28454e3bfd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2444250Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Gyuyoung Kim <gyuyoung@igalia.com>
Commit-Queue: Henrique Ferreiro <hferreiro@igalia.com>
Cr-Commit-Position: refs/heads/master@{#813176}

third_party/blink/renderer/core/frame/web_frame_widget_base.cc

@@ -151,17 +151,6 @@ viz::FrameSinkId GetRemoteFrameSinkId(const HitTestResult& result) {
 
 }  // namespace
 
-// Ensure that the DragOperation enum values stay in sync with the original
-// DragOperation constants.
-// STATIC_ASSERT_ENUM(kDragOperationNone, kDragOperationNone);
-// STATIC_ASSERT_ENUM(kDragOperationCopy, kDragOperationCopy);
-// STATIC_ASSERT_ENUM(kDragOperationLink, kDragOperationLink);
-// STATIC_ASSERT_ENUM(kDragOperationGeneric, kDragOperationGeneric);
-// STATIC_ASSERT_ENUM(kDragOperationPrivate, kDragOperationPrivate);
-// STATIC_ASSERT_ENUM(kDragOperationMove, kDragOperationMove);
-// STATIC_ASSERT_ENUM(kDragOperationDelete, kDragOperationDelete);
-// STATIC_ASSERT_ENUM(kDragOperationEvery, kDragOperationEvery);
-
 bool WebFrameWidgetBase::ignore_input_events_ = false;
 
 WebFrameWidgetBase::WebFrameWidgetBase(