chore(lint): cleanup unused variables in code (#1563)

packages/netlify-cms-ui-default/src/Icon.js

@@ -50,7 +50,7 @@ const sizes = {
   large: '32px',
 };
 
-const Icon = ({ type, direction, size = 'medium', width, height, className }) => (
+const Icon = ({ type, direction, size = 'medium', className }) => (
   <IconWrapper
     className={className}
     dangerouslySetInnerHTML={{ __html: icons[type].image }}

packages/netlify-cms-ui-default/src/Loader.js

@@ -102,7 +102,7 @@ export class Loader extends React.Component {
   };
 
   render() {
-    const { active, className } = this.props;
+    const { className } = this.props;
     return <div className={className}>{this.renderChild()}</div>;
   }
 }

packages/netlify-cms-ui-default/src/Toggle.js

@@ -39,7 +39,6 @@ const ToggleBackground = styled.span`
 const Toggle = ({
   active,
   onChange,
-  renderBackground,
   onFocus,
   onBlur,
   className,