diff --git a/frontend/src/component/history/history-item-json.jsx b/frontend/src/component/history/history-item-json.jsx
index 6886e0fdc1..6586ec8e44 100644
--- a/frontend/src/component/history/history-item-json.jsx
+++ b/frontend/src/component/history/history-item-json.jsx
@@ -1,75 +1,7 @@
 import React, { PropTypes, PureComponent } from 'react';
 
-import FontIcon from 'react-toolbox/lib/font_icon';
-
 import style from './history.scss';
 
-const DIFF_PREFIXES = {
-    A: ' ',
-    E: ' ',
-    D: '-',
-    N: '+',
-};
-
-const SPADEN_CLASS = {
-    A: style.blue, // array edited
-    E: style.blue, // edited
-    D: style.negative, // deleted
-    N: style.positive, // added
-};
-
-function getIcon (type) {
-    switch (type) {
-        case 'feature-updated': return 'autorenew';
-        case 'feature-created': return 'add';
-        case 'feature-deleted': return 'remove';
-        case 'feature-archived': return 'archived';
-        default: return 'star';
-    }
-}
-
-function buildItemDiff (diff, key) {
-    let change;
-    if (diff.lhs !== undefined) {
-        change = (
-            <div>
-                <div className={SPADEN_CLASS.D}>- {key}: {JSON.stringify(diff.lhs)}</div>
-            </div>
-        );
-    } else if (diff.rhs !== undefined) {
-        change = (
-            <div>
-                <div className={SPADEN_CLASS.N}>+ {key}: {JSON.stringify(diff.rhs)}</div>
-            </div>
-        );
-    }
-
-    return change;
-}
-
-function buildDiff (diff, idx) {
-    let change;
-    const key = diff.path.join('.');
-
-    if (diff.item) {
-        change = buildItemDiff(diff.item, key);
-    } else if (diff.lhs !== undefined && diff.rhs !== undefined) {
-        change = (
-            <div>
-                <div className={SPADEN_CLASS.D}>- {key}: {JSON.stringify(diff.lhs)}</div>
-                <div className={SPADEN_CLASS.N}>+ {key}: {JSON.stringify(diff.rhs)}</div>
-            </div>
-        );
-    } else {
-        const spadenClass = SPADEN_CLASS[diff.kind];
-        const prefix      = DIFF_PREFIXES[diff.kind];
-
-        change = (<div className={spadenClass}>{prefix} {key}: {JSON.stringify(diff.rhs || diff.item)}</div>);
-    }
-
-    return (<div key={idx}>{change}</div>);
-}
-
 class HistoryItem extends PureComponent {
 
     static propTypes () {
@@ -79,10 +11,6 @@ class HistoryItem extends PureComponent {
     }
 
     render () {
-        const { type } = this.props.entry;
-
-        const icon = getIcon(type);
-
         const localEventData = JSON.parse(JSON.stringify(this.props.entry));
         delete localEventData.description;
         delete localEventData.name;