Remove unused Textfield::SetShadows.

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index bcc3bbc0d58083dbdd891e892a8bd2b9dd277d79..69d7b462bffc4694539a20479bb55443e58c334c 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -139,9 +139,6 @@ class VIEWS_EXPORT Textfield : public View,
   void SetSelectionBackgroundColor(SkColor color);
   void UseDefaultSelectionBackgroundColor();
 
-  // Set drop shadows underneath the text.
-  void SetShadows(const gfx::ShadowValues& shadows);
-
   // Gets/Sets whether or not the cursor is enabled.
   bool GetCursorEnabled() const;
   void SetCursorEnabled(bool enabled);