my single posts is getting 31 query from mysql. I checked all queries. I saw this query.

I am using **last posts** and **categories** widget. I think there query is unnecessary.How to remove theme

<pre>Query: SELECT option_value FROM xy_options WHERE option_name = 'widget_pages' LIMIT 1
Query: SELECT option_value FROM xy_options WHERE option_name = 'widget_calendar' LIMIT 1
Query: SELECT option_value FROM xy_options WHERE option_name = 'widget_tag_cloud' LIMIT 1
Query: SELECT option_value FROM xy_options WHERE option_name = 'widget_nav_menu' LIMIT 1
</pre>

my sidebar is here https://gist.github.com/4546327