RFR 8179903: Clean up SPARC 32-bit support

[Gerald Thornbrugh]

Hi George,

Your changes look good to me.

Jerry
> On May 12, 2017, at 8:34 AM, George Triantafillou <george.triantafillou at oracle.com> wrote:
> 
> Please review this fix to clean up SPARC 32-bit support.
> 
> JBS: https://bugs.openjdk.java.net/browse/JDK-8179903
> webrev: http://cr.openjdk.java.net/~gtriantafill/8179903-webrev/webrev/index.html <http://cr.openjdk.java.net/%7Egtriantafill/8179903-webrev/webrev/index.html>
> 
> This is a followup RFE to "JDK-8150388 Remove SPARC 32-bit support". The work includes addressing formatting, 32-bit comments, and other issues that Kim raised after JDK-8150388 was reviewed and checked in.
> 
> Built and tested on solaris-sparcv9-debug, solaris-x64-debug with the nsk.jvmti, nsk.jdwp, and nsk.jdi testlists.
> 
> Thanks.
> 
> -George
>