* Stop harvesting old frameworks in some libraries

The removed configurations (few netstandard1.x, portable*, netcore50)
of the touched packages aren't built anymore. Instead
the already built matching binaries from the latest available packages
are redistributed when packaging these libraries.

Dropping these assets as the minimum supported set of platforms are ones
that support netstandard2.0. For .NET Framework, there's still a net461
configuration present to avoid binding redirect issues.

Contributes to #47530