There are two locations in Site Info where you can remove tools from your site: Manage Tools and Tool Order.
Select the Site Info tool from the Tool Menu of your site.
Alternatively, you can use the Selected tools list to remove tools. Click the X icon (Remove) to the right of a tool to remove it.
Once you have deselected the tools, scroll down and click Continue.
Tools to be removed will be listed at the top of the screen. Tools you have selected to keep in your site will be listed below them. Click Finish to confirm that these are the tools you want.
You'll be prompted to confirm that you want to remove the tool from the site. Click OK if you are sure you want to remove it.