Move msbuild tasks into src folder and delete dead code

[ViktorHofer]

Contributes to #36519

We'll always have a need for repository local msbuild tasks. As the tools-local folder only clutters the repository root, moving them into the src folder should be a better place.

Also deleting dead task code.

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Issue Details

---

Contributes to #36519

We'll always have a need for repository local msbuild tasks. As the tools-local folder only clutters the repository root, moving them into the src folder should be a better place.

Also deleting dead task code.

Author:	ViktorHofer
Assignees:	-
Labels:	area-Infrastructure
Milestone:	-

[ViktorHofer]

Someone pls approve so that I can merge the PR tomorrow morning ;)

[marek-safar]

src\tasks sounds a bit strange to me, did you think about placing them under src\msbuild\tasks

[ViktorHofer]

We don't have a parent msbuild folder anywhere else, neither in eng which mostly contains msbuild files, nor in src libraries. As our primary build engine is msbuild, I don't think we need the extra msbuild folder. Or let me rephrase, what else would we put there? Other pure msbuild files like Directory.Build.props/targets/rsp actually can't be in a subfolder, otherwise they wouldn't apply.

[marek-safar]

it's just not obvious to me that src/tasks is about in-tree msbuild tasks support but I can live with that

[ViktorHofer]

it's just not obvious to me that src/tasks is about in-tree msbuild tasks support but I can live with that

I will add a README.md to make that clear. Thanks for the feedback.

[ViktorHofer]

Submitted #45754