title: Array#delete, but return the array?
body: <p>Is there a built-in method which performs the same function as <code>Array#delete</code> but returns <code>self</code>? I'd like to do it without using a block and clearer than <code>an_ary.-([el])</code>.</p>
  
  <p>I could monkeypatch one, but it seems like a "compact with arguments" method would be a relatively common desire?</p>