RFR: 8327701: Remove the xlc toolchain [v2]

[Magnus Ihse Bursie]

On Mon, 11 Mar 2024 09:14:27 GMT, Joachim Kern <jkern at openjdk.org> wrote:

>> Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Revert SEARCH_PATH changes
>
> make/autoconf/toolchain.m4 line 409:
> 
>> 407:     #    Target: powerpc-ibm-aix7.2.0.0
>> 408:     #    Thread model: posix
>> 409:     #    InstalledDir: /opt/IBM/openxlC/17.1.0/bin
> 
> Please correct:
> IBM Open XL C/C++ for AIX 17.1.**1** (xxxxxxxxxxxxxxx), clang version 1**5**.0.0
>     #    Target: **powerpc-ibm-aix7.2.**5**.7**
>     #    Thread model: posix
>     #    InstalledDir: /opt/IBM/openxlC/17.1.**1**/bin

That was just intended as an example code. At one point, this has been printed by the compiler output (at least according to the source I found on the net). I tried to find a bunch of different examples from different platforms and versions. 

But sure, if it makes you happier, I can replace it with a more up to date example.

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PR Review Comment: https://git.openjdk.org/jdk/pull/18172#discussion_r1521656819