RFR(s): 8214181: safepoint header cleanup

[Robbin Ehn]

Thanks Coleen.

On 11/21/18 9:32 PM, coleen.phillimore at oracle.com wrote:
> 
> This looks good.  Thank you for fixing the "*"s.
> I assume you built this with --disable-precompiled-headers.

Yes. I did a small update.

/Robbin

> Thanks,
> Coleen
> 
> On 11/21/18 9:17 AM, Robbin Ehn wrote:
>> Hi all, please review.
>>
>> A cleanup of unused headers in safepoint.hpp, which have some minor collateral 
>> effects.
>>
>> CR:
>> https://bugs.openjdk.java.net/browse/JDK-8214181
>>
>> Webrev:
>> http://cr.openjdk.java.net/~rehn/8214181/webrev/index.html
>>
>> Passes t1, locally built without precompiled headers.
>>
>> Thanks, Robbin
>