Every time you add a widget and pictures to your blog, this will add an outbound link, usually like this 'http://www.blogger.com/rearrange?blogid=8632444376522355252&widgettype=label&widgetid=label1&action=editwidget' for widget and for the picture you can see here.

You can check inbound and outbound links in your blog here :

http://www.diagnosticoweb.com OR http://www.seochat.com/seo-tools/site-link-analyzer.

To eliminate outbound links, there are some steps you should do :

1. Go to layout and edit html, check the 'Expand Widget Templates'

2. Find the code below

<b:include name="quickedit">

You can pressing Ctrl + F for quick search

3. Remove the code above that listed on your template

4. This will reduce outbound links on your blog depending how many widgets that you have already installed

Note :
You can not do 'Quickedit' again on your blog page, even if you are already logged into blogspot.