ntp: remove default thumbnail for most visited (broken camera)

chrome/browser/ui/webui/ntp/thumbnail_source.cc

Index: chrome/browser/ui/webui/ntp/thumbnail_source.cc
diff --git a/chrome/browser/ui/webui/ntp/thumbnail_source.cc b/chrome/browser/ui/webui/ntp/thumbnail_source.cc
index b5e6296d0e8fae566aa60bdb6548b798a94af609..51f6de07a1699b22f02025245add6165d13ee939 100644
--- a/chrome/browser/ui/webui/ntp/thumbnail_source.cc
+++ b/chrome/browser/ui/webui/ntp/thumbnail_source.cc
@@ -46,11 +46,5 @@ MessageLoop* ThumbnailSource::MessageLoopForRequestPath(
 }
 
 void ThumbnailSource::SendDefaultThumbnail(int request_id) {
-  // Use placeholder thumbnail.
-  if (!default_thumbnail_.get()) {
-    default_thumbnail_ =
-        ResourceBundle::GetSharedInstance().LoadDataResourceBytes(
-            IDR_DEFAULT_THUMBNAIL);
-  }
   SendResponse(request_id, default_thumbnail_);
 }