search-provider: Don't dump core on timeout

g_error is documented as "This function will result in a core dump".
It will get picked up by crash collection systems and cause noise
there, which is not helpful. Just log a warning and move on.

https://bugzilla.gnome.org/show_bug.cgi?id=758230

src/contacts-esd-setup.c

@@ -115,7 +115,7 @@ gboolean contacts_ensure_eds_accounts (gboolean allow_interaction)
   /* If this fails it's game over. */
   if (error != NULL)
     {
-      g_error ("%s: %s", G_STRFUNC, error->message);
+      g_warning ("%s: %s", G_STRFUNC, error->message);
       return FALSE;
     }