Remove deprecated gfx::Image::operator NSImage*().

ui/gfx/image/image.h

Index: ui/gfx/image/image.h
diff --git a/ui/gfx/image/image.h b/ui/gfx/image/image.h
index 05a50a47abf68b0c84706c78088ec3cdc3e948c7..279a1e0ceb625d34fbe83998afdc608969294cab 100644
--- a/ui/gfx/image/image.h
+++ b/ui/gfx/image/image.h
@@ -145,13 +145,6 @@ class UI_EXPORT Image {
   NSImage* CopyNSImage() const;
 #endif
 
-  // DEPRECATED ----------------------------------------------------------------
-  // Conversion handlers. These wrap the ToType() variants.
-#if defined(OS_MACOSX) && !defined(OS_IOS)
-  operator NSImage*() const;
-#endif
-  // ---------------------------------------------------------------------------
-
   // Inspects the representations map to see if the given type exists.
   bool HasRepresentation(RepresentationType type) const;