[Chore] Clean up unpublished namespaces and assemblies (#11366)

Author: gewarren

docfx.json

@@ -85,7 +85,6 @@
       },
       "ms.subservice": {
         "api/Accessibility**.yml": "accessibility",
-        "api/DbLinq.Util**.yml": "dbling.util",
         "api/Microsoft.Activities**.yml": "microsoft.activities",
         "api/Microsoft.Build**.yml": "microsoft.build",
         "api/Microsoft.CSharp**.yml": "microsoft.csharp",
@@ -95,15 +94,14 @@
         "api/Microsoft.VisualC**.yml": "microsoft.visualc",
         "api/Microsoft.Win32**.yml": "microsoft.win32",
         "api/Microsoft.Windows**.yml": "microsoft.windows",
-        "api/Mono**.yml": "mono",
         "api/System.*.yml": "system",
         "api/System.Activities**.yml": "system.activities",
         "api/System.AddIn**.yml": "system.addin",
         "api/System.Buffers**.yml": "system.buffers",
         "api/System.CodeDom**.yml": "system.codedom",
         "api/System.Collections**.yml": "system.collections",
-        "api/System.Composition**.yml": "system.composition",
         "api/System.ComponentModel**.yml": "system.componentmodel",
+        "api/System.Composition**.yml": "system.composition",
         "api/System.Configuration**.yml": "system.configuration",
         "api/System.Data**.yml": "system.data",
         "api/System.Deployment**.yml": "system.deployment",