Revert "MM-831 Post timestamp now updates in real time"

web/react/components/sidebar_right.jsx

@@ -16,16 +16,10 @@ module.exports = React.createClass({
     componentDidMount: function() {
         PostStore.addSearchChangeListener(this._onSearchChange);
         PostStore.addSelectedPostChangeListener(this._onSelectedChange);
-        UserStore.addStatusesChangeListener(this._onChange);
     },
     componentWillUnmount: function() {
         PostStore.removeSearchChangeListener(this._onSearchChange);
         PostStore.removeSelectedPostChangeListener(this._onSelectedChange);
-        UserStore.removeStatusesChangeListener(this._onChange);
-    },
-    _onChange: function() {
-        // Updates the timestamp on each post
-        this.forceUpdate();
     },
     _onSelectedChange: function(from_search) {
         if (this.isMounted()) {