diff --git a/src/Umbraco.Web/FormDataCollectionExtensions.cs b/src/Umbraco.Web/FormDataCollectionExtensions.cs
deleted file mode 100644
index 3f2840c8ca..0000000000
--- a/src/Umbraco.Web/FormDataCollectionExtensions.cs
+++ /dev/null
@@ -1,104 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net.Http.Formatting;
-using System.Text;
-using Umbraco.Core;
-
-namespace Umbraco.Web
-{
-    // Migrated to .NET Core (as FormCollectionExtensions)
-    public static class FormDataCollectionExtensions
-    {
-        /// <summary>
-        /// Converts a dictionary object to a query string representation such as:
-        /// firstname=shannon&lastname=deminick
-        /// </summary>
-        /// <param name="items"></param>
-        /// <param name="keysToIgnore">Any keys found in this collection will be removed from the output</param>
-        /// <returns></returns>
-        public static string ToQueryString(this FormDataCollection items, params string[] keysToIgnore)
-        {
-            if (items == null) return "";
-            if (items.Any() == false) return "";
-
-            var builder = new StringBuilder();
-            foreach (var i in items.Where(i => keysToIgnore.InvariantContains(i.Key) == false))
-            {
-                builder.Append(string.Format("{0}={1}&", i.Key, i.Value));
-            }
-            return builder.ToString().TrimEnd('&');
-        }
-
-        /// <summary>
-        /// Converts the FormCollection to a dictionary
-        /// </summary>
-        /// <param name="items"></param>
-        /// <returns></returns>
-        public static IDictionary<string, object> ToDictionary(this FormDataCollection items)
-        {
-            return items.ToDictionary(x => x.Key, x => (object)x.Value);
-        }
-
-        /// <summary>
-        /// Returns the value of a mandatory item in the FormCollection
-        /// </summary>
-        /// <param name="items"></param>
-        /// <param name="key"></param>
-        /// <returns></returns>
-        public static string GetRequiredString(this FormDataCollection items, string key)
-        {
-            if (items.HasKey(key) == false)
-                throw new ArgumentNullException("The " + key + " query string parameter was not found but is required");
-            return items.Single(x => x.Key.InvariantEquals(key)).Value;
-        }
-
-        /// <summary>
-        /// Checks if the collection contains the key
-        /// </summary>
-        /// <param name="items"></param>
-        /// <param name="key"></param>
-        /// <returns></returns>
-        public static bool HasKey(this FormDataCollection items, string key)
-        {
-            return items.Any(x => x.Key.InvariantEquals(key));
-        }
-
-        /// <summary>
-        /// Returns the object based in the collection based on it's key. This does this with a conversion so if it doesn't convert a null object is returned.
-        /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <param name="items"></param>
-        /// <param name="key"></param>
-        /// <returns></returns>
-        public static T GetValue<T>(this FormDataCollection items, string key)
-        {
-            var val = items.Get(key);
-            if (string.IsNullOrEmpty(val)) return default(T);
-
-            var converted = val.TryConvertTo<T>();
-            return converted.Success
-                ? converted.Result
-                : default(T);
-        }
-
-        /// <summary>
-        /// Returns the object based in the collection based on it's key. This does this with a conversion so if it doesn't convert or the query string is no there an exception is thrown
-        /// </summary>
-        /// <typeparam name="T"></typeparam>
-        /// <param name="items"></param>
-        /// <param name="key"></param>
-        /// <returns></returns>
-        public static T GetRequiredValue<T>(this FormDataCollection items, string key)
-        {
-            var val = items.Get(key);
-            if (string.IsNullOrEmpty(val))
-                throw new InvalidOperationException($"The required query string parameter {key} is missing");
-
-            var converted = val.TryConvertTo<T>();
-            return converted.Success
-                ? converted.Result
-                : throw new InvalidOperationException($"The required query string parameter {key} cannot be converted to type {typeof(T)}");
-        }
-    }
-}
diff --git a/src/Umbraco.Web/Umbraco.Web.csproj b/src/Umbraco.Web/Umbraco.Web.csproj
index a0d0e65e21..27a90b5d7e 100644
--- a/src/Umbraco.Web/Umbraco.Web.csproj
+++ b/src/Umbraco.Web/Umbraco.Web.csproj
@@ -284,7 +284,6 @@
     <Compile Include="Models\RegisterModel.cs" />
     <Compile Include="Security\MembershipHelper.cs" />
     <Compile Include="HttpCookieExtensions.cs" />
-    <Compile Include="FormDataCollectionExtensions.cs" />
     <Compile Include="Editors\BackOfficeController.cs" />
     <Compile Include="Security\Providers\MembersMembershipProvider.cs" />
     <Compile Include="Security\Providers\MembersRoleProvider.cs" />