Fixes NuGet package creation output path (#3911)

Changes the NuGet package creation to output to the current directory
instead of the default location.

This resolves issues with the build script not finding the created
packages in the expected location.

Removes unused Azure pipeline YAML file.

Author: Keboo

build/BuildNugets.ps1

@@ -16,7 +16,7 @@ function New-DotNetPackage {
 
   $ProjectPath = Resolve-Path $ProjectPath
   Write-Host "Packing $ProjectPath with version $Version"
-  dotnet pack "$ProjectPath" -c $configuration -p:PackageVersion="$Version" -p:Copyright="$copyright" --no-build
+  dotnet pack "$ProjectPath" -c $configuration -p:PackageVersion="$Version" -p:Copyright="$copyright" --no-build -o "."
 }
 
 Push-Location "$(Join-Path $PSScriptRoot "..")"