Step 1. Log in to your Dashboard, go to Template > Edit HTML

Step 2. Click anywhere inside the code area and press the CTRL + F keys to open the Blogger' search box
Step 3. Type or paste the following tag inside the search box then hit Enter to find it:
</head>Step 4. Just above the </head> tag, add this CSS code:
<style>#Attribution1{display: none;}</style>Step 5. Click on the "Save Template" button to save the changes.
And this is how you can remove the blogger attribution gadget.
EmoticonEmoticon