Remove CodeAnnotations

- #8416
- turns out this required little on top of dougbu/remove.custom.tool

Author: dougbu

src/GetDocumentInsider/CodeAnnotations.cs

@@ -24,7 +24,6 @@
     <Compile Include="../GetDocumentInsider/AnsiConsole.cs" />
     <Compile Include="../GetDocumentInsider/AnsiConstants.cs" />
     <Compile Include="../GetDocumentInsider/AnsiTextWriter.cs" />
-    <Compile Include="../GetDocumentInsider/CodeAnnotations.cs" />
     <Compile Include="../GetDocumentInsider/CommandException.cs" />
     <Compile Include="../GetDocumentInsider/CommandLineUtils/*.cs" LinkBase="CommandLineUtils" />
     <Compile Include="../GetDocumentInsider/Commands/CommandBase.cs" Link="Commands/CommandBase.cs" />