js/libs/ember-1.5.1.js
function(value) {
    if (!this.contains(value)) return this; // nothing to do
    var ret = Ember.A();
    this.forEach(function(k) {
      if (k !== value) ret[ret.length] = k;
    }) ;
    return ret ;
  }
function(value) {
    if (!this.contains(value)) return this; // nothing to do
    var ret = Ember.A();
    this.forEach(function(k) {
      if (k !== value) ret[ret.length] = k;
    }) ;
    return ret ;
  }
Returns a new enumerable that excludes the passed value. The default
implementation returns an array regardless of the receiver type unless
the receiver does not contain the value.

```javascript
var arr = ["a", "b", "a", "c"];
arr.without("a");  // ["b", "c"]
```

@method without
@param {Object} value
@return {Ember.Enumerable}