Remove ToolGet (#22029)

* Remove ToolGet

* Remove link to natemcmaster tools list

Author: tdykstra

docs/core/tools/global-tools.md

@@ -34,8 +34,6 @@ Here are some ways to find tools:
 
 * Use the [dotnet tool search](dotnet-tool-search.md) command to find a tool that is published to NuGet.org.
 * Search the [NuGet](https://www.nuget.org) website by using the ".NET tool" package type filter. For more information, see [Finding and choosing packages](/nuget/consume-packages/finding-and-choosing-packages).
-* See the list of tools in the [natemcmaster/dotnet-tools](https://github.com/natemcmaster/dotnet-tools) GitHub repository.
-* Use [ToolGet](https://www.toolget.net/) to search for .NET tools.
 * See the source code for the tools created by the ASP.NET Core team in the [Tools directory of the dotnet/aspnetcore GitHub repository](https://github.com/dotnet/aspnetcore/tree/master/src/Tools).
 * Learn about diagnostic tools at [.NET diagnostic tools](../diagnostics/index.md#net-core-diagnostic-global-tools).