Remove the System.Runtime.Loader NuGet reference from Fake.Runtime (#2812)

Author: Numpsy

paket.dependencies

@@ -32,7 +32,6 @@ group fakerunner
     nuget Microsoft.NETCore.App framework: netstandard1.6, netstandard2.0, netcoreapp1.1
     nuget NETStandard.Library
     nuget Packaging.Targets
-    nuget System.Runtime.Loader
 
     // Testing
     nuget Expecto
@@ -71,4 +70,4 @@ group fakemodule
     nuget System.Runtime.Loader
     nuget System.Collections.Immutable
     nuget System.Data.SqlClient
-    nuget Microsoft.SqlServer.SqlManagementObjects
+    nuget Microsoft.SqlServer.SqlManagementObjects