Hiding the widget from the site is quite simple. Here's a step-by-step instruction.
Step 1. Log into your account.
Step 2. Click on 'Manage' button.
Step 3. Go to the 'Customize' section.
Step 4. Click on the field with the person icon.
Step 5. Select "Custom Anchor" and leave it empty.
Step 6. Scroll down to mobile and select "None" for the 'Icon Position' field.
Step 7. Click "Save" and you're all set. The widget icon will no longer appear on your site.