Removed explicit loading of assembly netstandard

Author: daghb

RazorEngineCore/RazorEngineCompilationOptions.cs

@@ -11,14 +11,13 @@ public class RazorEngineCompilationOptions
             typeof(object).Assembly,
             Assembly.Load(new AssemblyName("Microsoft.CSharp")),
             typeof(RazorEngineTemplateBase).Assembly,
-            Assembly.Load(new AssemblyName("netstandard")),
             Assembly.Load(new AssemblyName("System.Runtime")),
             Assembly.Load(new AssemblyName("System.Linq")),
             Assembly.Load(new AssemblyName("System.Linq.Expressions"))
         };
 
         public HashSet<MetadataReference> MetadataReferences { get; set; } = new HashSet<MetadataReference>();
-        
+
         public string TemplateNamespace { get; set; } = "TemplateNamespace";
         public string Inherits { get; set; } = "RazorEngineCore.RazorEngineTemplateBase";