The NuGet Delete action provides the ability to remove a package from a NuGet Server. [nuget delete]
NuGet Delete
Name
A friendly name for this action (will be displayed in the actions workflow area).
...
The API Key for the NuGet server which this package is being removed from. [-ApiKey]
Source Server
The URL to the NuGet server where this package will be removed from. [-Source]
Configuration File
The NuGet configuration file. If not specified, file %AppData%\NuGet\NuGet.config is used. [-ConfigFile]
Using
The Using drop down is populated with any property collector whose namespace matches the pattern defined by the NuGet Delete action. The pattern for this action is ^NuGet.*
...