1. Sign in to Blogger Dashboard and select your blog
2. After selecting your blog, go to Template
3. Click on 'Edit HTML'
4. Point your mouse to 'Jump to widget' and change it to Attribution1
5. Find the following sentence '<b:widget id='Attribution1' locked='true' title='' type='Attribution'>...</b:widget>' and change 'locked='true' to 'locked='false'
6. Go to Layout and then click edit on Attribution
7. Click Remove