Remove temporary `dotnet publish` workaround

[andyleejordan]

We should remove the following workaround:

PowerShellEditorServices/src/PowerShellEditorServices.Hosting/PowerShellEditorServices.Hosting.csproj

Lines 9 to 19 in 00c7824

	<!-- HACK: This is a temporary workaround of `dotnet publish` -->
	<Target Name="InjectNetStandardFacadesToPublishDirectory"
	BeforeTargets="ComputeResolvedFilesToPublishList"
	Condition="'@(_NETStandardLibraryNETFrameworkLib)' != ''">
	<ItemGroup>
	<_ResolvedCopyLocalPublishAssets
	Include="@(_NETStandardLibraryNETFrameworkLib)"
	Condition="'%(_NETStandardLibraryNETFrameworkLib.FileName)' != 'netfx.force.conflicts'"
	/>
	</ItemGroup>
	</Target>

now that it's been resolved upstream: dotnet/sdk#18101 (comment)