Revert 291214 "Fixes three crashes" in an attempt to find the cause of Athena related unit test fai…

trunk/src/athena/home/home_card_impl.cc

Index: trunk/src/athena/home/home_card_impl.cc
===================================================================
--- trunk/src/athena/home/home_card_impl.cc	(revision 291393)
+++ trunk/src/athena/home/home_card_impl.cc	(working copy)
@@ -486,11 +486,6 @@
   if (activation_client_)
     activation_client_->RemoveObserver(this);
   home_card_widget_->CloseNow();
-
-  // Reset the view delegate first as it access search provider during
-  // shutdown.
-  view_delegate_.reset();
-  search_provider_.reset();
   instance = NULL;
 }