RFR(XS): ostream has unnecessary dependency on GCId

[Kim Barrett]

> On Mar 29, 2016, at 5:25 AM, Per Liden <per.liden at oracle.com> wrote:
> 
> Looks good.
> 
> Per

Thanks.

> 
> On 2016-03-29 04:09, Kim Barrett wrote:
>> Please review this small cleanup, eliminating a no longer
>> needed #include dependency.
>> 
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8152916
>> 
>> Webrev:
>> http://cr.openjdk.java.net/~kbarrett/8152916/webrev.00/
>> 
>> Testing:
>> JPRT