js/libs/ember-1.5.1.js
function(fullName) {
        validateFullName(fullName);

        var normalizedName = this.normalize(fullName);

        this.registry.remove(normalizedName);
        this.cache.remove(normalizedName);
        this.factoryCache.remove(normalizedName);
        this.resolveCache.remove(normalizedName);
        this._options.remove(normalizedName);
      }
function(fullName) {
        validateFullName(fullName);

        var normalizedName = this.normalize(fullName);

        this.registry.remove(normalizedName);
        this.cache.remove(normalizedName);
        this.factoryCache.remove(normalizedName);
        this.resolveCache.remove(normalizedName);
        this._options.remove(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