Remove unused color from NativeTheme.

chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc

Index: chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc
diff --git a/chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc b/chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc
index 109930bbc89cf017b28011fa95d1b38f63d0a1ee..5cf2fa75993bbc18748e2921981b020623e7e462 100644
--- a/chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc
+++ b/chrome/browser/ui/libgtk2ui/native_theme_gtk2.cc
@@ -412,18 +412,6 @@ SkColor NativeThemeGtk2::GetSystemColor(ColorId color_id) const {
       return SelectedURLColor(
           GetSystemColor(kColorId_TextfieldSelectionColor),
           GetSystemColor(kColorId_TextfieldSelectionBackgroundFocused));
-    case kColorId_ResultsTableNormalDivider:
-      return color_utils::AlphaBlend(GetTextColor(GetWindow(), NORMAL),
-                                     GetBGColor(GetWindow(), NORMAL),
-                                     0x34);
-    case kColorId_ResultsTableHoveredDivider:
-      return color_utils::AlphaBlend(GetTextColor(GetWindow(), PRELIGHT),
-                                     GetBGColor(GetWindow(), PRELIGHT),
-                                     0x34);
-    case kColorId_ResultsTableSelectedDivider:
-      return color_utils::AlphaBlend(GetTextColor(GetWindow(), SELECTED),
-                                     GetBGColor(GetWindow(), SELECTED),
-                                     0x34);
 
     case kColorId_ResultsTablePositiveText: {
       return color_utils::GetReadableColor(kPositiveTextColor,