[Ash MD] Remove some non-MD code from HoverHighlightView

ash/common/system/tray/special_popup_row.cc

Index: ash/common/system/tray/special_popup_row.cc
diff --git a/ash/common/system/tray/special_popup_row.cc b/ash/common/system/tray/special_popup_row.cc
index 9a95fd1ddc7747c82943e5568803d2ef0f89a65b..0c264ec4b0918703c53d2f21dd2c6331f3a46403 100644
--- a/ash/common/system/tray/special_popup_row.cc
+++ b/ash/common/system/tray/special_popup_row.cc
@@ -61,14 +61,9 @@ void SpecialPopupRow::SetTextLabel(int string_id, ViewClickListener* listener) {
   container->SetLayoutManager(new views::BoxLayout(
       views::BoxLayout::kHorizontal, 0, 3, kIconPaddingLeft));
 
-  container->set_highlight_color(SkColorSetARGB(0, 0, 0, 0));
-  container->set_default_color(SkColorSetARGB(0, 0, 0, 0));
-  container->set_text_highlight_color(kHeaderTextColorHover);
-  container->set_text_default_color(kHeaderTextColorNormal);
-
   container->AddIconAndLabel(
       *rb.GetImageNamed(IDR_AURA_UBER_TRAY_LESS).ToImageSkia(),
-      rb.GetLocalizedString(string_id), true /* highlight */);
+      rb.GetLocalizedString(string_id));
 
   container->SetBorder(
       views::CreateEmptyBorder(0, kTrayPopupPaddingHorizontal, 0, 0));