Remove obsolete code

src/Umbraco.Web/RenderFieldCaseType.cs

@@ -1,13 +0,0 @@
-namespace Umbraco.Web
-{
-    /// <summary>
-    /// Used in the .Field method when rendering an Umbraco field to specify what case type it should be
-    /// </summary>
-    public enum RenderFieldCaseType
-    {
-        Upper,
-        Lower,
-        Title,
-        Unchanged
-    }
-}

src/Umbraco.Web/RenderFieldEncodingType.cs

@@ -1,13 +0,0 @@
-namespace Umbraco.Web
-{
-
-    /// <summary>
-    /// Used in the .Field method to render an Umbraco field to specify what encoding to use
-    /// </summary>
-    public enum RenderFieldEncodingType
-    {
-        Url,
-        Html,
-        Unchanged
-    }
-}

src/Umbraco.Web/Umbraco.Web.csproj

@@ -1058,8 +1058,6 @@
     <Compile Include="Mvc\PluginControllerMetadata.cs" />
     <Compile Include="Mvc\UmbracoPageResult.cs" />
     <Compile Include="PropertyEditors\ValueConverters\RteMacroRenderingValueConverter.cs" />
-    <Compile Include="RenderFieldCaseType.cs" />
-    <Compile Include="RenderFieldEncodingType.cs" />
     <Compile Include="RouteCollectionExtensions.cs" />
     <Compile Include="Routing\AliasUrlProvider.cs" />
     <Compile Include="Routing\ContentFinderByLegacy404.cs" />