1 files changed, 0 insertions, 81 deletions
diff --git a/src/mscorlib/src/System/FormattableString.cs b/src/mscorlib/src/System/FormattableString.cs
deleted file mode 100644
index 6369363b5d..0000000000
--- a/src/mscorlib/src/System/FormattableString.cs
+++ /dev/null
@@ -1,81 +0,0 @@
-// Licensed to the .NET Foundation under one or more agreements.
-// The .NET Foundation licenses this file to you under the MIT license.
-// See the LICENSE file in the project root for more information.
-
-/*============================================================
-**
-**
-**
-** Purpose: implementation of the FormattableString
-** class.
-**
-===========================================================*/
-
-namespace System
-{
-    /// <summary>
-    /// A composite format string along with the arguments to be formatted. An instance of this
-    /// type may result from the use of the C# or VB language primitive "interpolated string".
-    /// </summary>
-    public abstract class FormattableString : IFormattable
-    {
-        /// <summary>
-        /// The composite format string.
-        /// </summary>
-        public abstract string Format { get; }
-
-        /// <summary>
-        /// Returns an object array that contains zero or more objects to format. Clients should not
-        /// mutate the contents of the array.
-        /// </summary>
-        public abstract object[] GetArguments();
-
-        /// <summary>
-        /// The number of arguments to be formatted.
-        /// </summary>
-        public abstract int ArgumentCount { get; }
-
-        /// <summary>
-        /// Returns one argument to be formatted from argument position <paramref name="index"/>.
-        /// </summary>
-        public abstract object GetArgument(int index);
-
-        /// <summary>
-        /// Format to a string using the given culture.
-        /// </summary>
-        public abstract string ToString(IFormatProvider formatProvider);
-
-        string IFormattable.ToString(string ignored, IFormatProvider formatProvider)
-        {
-            return ToString(formatProvider);
-        }
-
-        /// <summary>
-        /// Format the given object in the invariant culture. This static method may be
-        /// imported in C# by
-        /// <code>
-        /// using static System.FormattableString;
-        /// </code>.
-        /// Within the scope
-        /// of that import directive an interpolated string may be formatted in the
-        /// invariant culture by writing, for example,
-        /// <code>
-        /// Invariant($"{{ lat = {latitude}; lon = {longitude} }}")
-        /// </code>
-        /// </summary>
-        public static string Invariant(FormattableString formattable)
-        {
-            if (formattable == null)
-            {
-                throw new ArgumentNullException(nameof(formattable));
-            }
-
-            return formattable.ToString(Globalization.CultureInfo.InvariantCulture);
-        }
-
-        public override string ToString()
-        {
-            return ToString(Globalization.CultureInfo.CurrentCulture);
-        }
-    }
-}