lib/Ext/core/EventManager.js
function(element, eventName, fn, scope) {
        //<debug warn>
        Ext.Logger.deprecate("Ext.EventManager.removeListener is deprecated, use removeListener() directly from an instance of Ext.Element instead", 2);
        //</debug>
        element.un(eventName, fn, scope);
    }
function(element, eventName, fn, scope) {
        //<debug warn>
        Ext.Logger.deprecate("Ext.EventManager.removeListener is deprecated, use removeListener() directly from an instance of Ext.Element instead", 2);
        //</debug>
        element.un(eventName, fn, scope);
    }
Removes an event handler from an element.  The shorthand version {@link #un} is equivalent.  Typically
you will use {@link Ext.Element#removeListener} directly on an Element in favor of calling this version.
@param {String/HTMLElement} el The id or html element from which to remove the listener.
@param {String} eventName The name of the event.
@param {Function} fn The handler function to remove. __This must be a reference to the function passed into the {@link #addListener} call.__
@param {Object} scope If a scope (`this` reference) was specified when the listener was added,
then this must refer to the same object.
@deprecated 2.0.0 Please use {@link Ext.dom.Element#removeListener removeListener} on an instance of Ext.Element instead.