How to Remove Unused Code

1) Install Roslynator.DotNet.Cli

dotnet tool install -g roslynator.dotnet.cli

2) Run find-symbol command

The following command finds and removes types (classes, structs etc.) with internal or private visibility, skipping types marked with the Obsolete attribute:

roslynator find-symbol --symbol-kind type --unused --remove --without-attribute System.ObsoleteAttribute