[Development] Let's drop MSVC 2019 for dev (6.9) (was: 6.9)

[Axel Spoerl]

+1. Let’s drop it. 

> On 1 Sep 2024, at 17:50, Thiago Macieira <thiago.macieira at intel.com> wrote:
> 
> On Saturday 31 August 2024 08:26:06 GMT-7 Thiago Macieira wrote:
>> You can now choose: 64-bit QFlags or MSVC 2019. I don't think it's worth
>> keeping compatibility with the old moc way of doing things for a now 5-year-
>> old compiler. More to the point, I refuse to do the work to even attempt to
>> work around the issue.
> 
> s/2019/2022/ in COIN for the Qt targets.
> https://codereview.qt-project.org/c/qt/qt5/+/587589
> 
> --
> Thiago Macieira - thiago.macieira (AT) intel.com
>  Principal Engineer - Intel DCAI Platform & System Engineering
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