clean up unused code

components/input/Input.tsx

@@ -128,7 +128,6 @@ export default class Input extends React.Component<InputProps, any> {
 
     // Need another wrapper for changing display:table to display:inline-block
     // and put style prop in wrapper
-    if (addonBefore || addonAfter) {
     return (
       <span
         className={groupClassName}
@@ -142,14 +141,6 @@ export default class Input extends React.Component<InputProps, any> {
       </span>
     );
   }
-    return (
-      <span className={className}>
-        {addonBefore}
-        {children}
-        {addonAfter}
-      </span>
-    );
-  }
 
   renderLabeledIcon(children: React.ReactElement<any>) {
     const { props } = this;