chore: clean CIcon component

Author: woothu

src/CIcon.js

@@ -1,7 +1,2 @@
-import React from 'react'
-import CIconRaw from './CIconRaw'
 import './CIcon.css'
-
-//component - CoreUI / CIcon
-const CIcon = props => <CIconRaw {...props}/>
-export default CIcon
+export { default as CIcon } from './CIconRaw'