public/lib/emberjs/ember.js
function(fullName) {
        Ember.assert('fullName must be a proper full name', validateFullName(fullName));

        var normalizedName = this.normalize(fullName);

        delete this.registry[normalizedName];
        delete this.cache[normalizedName];
        delete this.factoryCache[normalizedName];
        delete this.resolveCache[normalizedName];
        delete this._options[normalizedName];
      }
function(fullName) {
        Ember.assert('fullName must be a proper full name', validateFullName(fullName));

        var normalizedName = this.normalize(fullName);

        delete this.registry[normalizedName];
        delete this.cache[normalizedName];
        delete this.factoryCache[normalizedName];
        delete this.resolveCache[normalizedName];
        delete this._options[normalizedName];
      }
function ( fullName ) { Ember . assert ( 'fullName must be a proper full name' , validateFullName ( fullName ) ) ; var normalizedName = this . normalize ( fullName ) ; delete this . registry [ normalizedName ] ; delete this . cache [ normalizedName ] ; delete this . factoryCache [ normalizedName ] ; delete this . resolveCache [ normalizedName ] ; delete this . _options [ normalizedName ] ; }
Unregister a fullName

```javascript
var container = new Container();
container.register('model:user', User);

container.lookup('model:user') instanceof User //=> true

container.unregister('model:user')
container.lookup('model:user') === undefined //=> true
```

@method unregister
@param {String} fullName
Unregister a fullName