Normative: Remove use of @@species from Promise.all/race

Fixes #151, per November 2015 TC39 meeting.

spec.html

@@ -34629,8 +34629,6 @@ <h1>Promise.all ( _iterable_ )</h1>
         <emu-alg>
           1. Let _C_ be the *this* value.
           1. If Type(_C_) is not Object, throw a *TypeError* exception.
-          1. Let _S_ be ? Get(_C_, @@species).
-          1. If _S_ is neither *undefined* nor *null*, let _C_ be _S_.
           1. Let _promiseCapability_ be ? NewPromiseCapability(_C_).
           1. Let _iterator_ be GetIterator(_iterable_).
           1. IfAbruptRejectPromise(_iterator_, _promiseCapability_).
@@ -34721,8 +34719,6 @@ <h1>Promise.race ( _iterable_ )</h1>
         <emu-alg>
           1. Let _C_ be the *this* value.
           1. If Type(_C_) is not Object, throw a *TypeError* exception.
-          1. Let _S_ be ? Get(_C_, @@species).
-          1. If _S_ is neither *undefined* nor *null*, let _C_ be _S_.
           1. Let _promiseCapability_ be ? NewPromiseCapability(_C_).
           1. Let _iterator_ be GetIterator(_iterable_).
           1. IfAbruptRejectPromise(_iterator_, _promiseCapability_).
@@ -34734,7 +34730,7 @@ <h1>Promise.race ( _iterable_ )</h1>
           1. Return Completion(_result_).
         </emu-alg>
         <emu-note>
-          <p>If the _iterable_ argument is empty or if none of the promises in _iterable_ ever settle then the pending promise returned by this method will never be settled</p>
+          <p>If the _iterable_ argument is empty or if none of the promises in _iterable_ ever settle then the pending promise returned by this method will never be settled.</p>
         </emu-note>
         <emu-note>
           <p>The `race` function expects its *this* value to be a constructor function that supports the parameter conventions of the `Promise` constructor. It also expects that its *this* value provides a `resolve` method.</p>