diff --git a/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/AddRuntimeOSPropertyTask.cs b/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/AddRuntimeOSPropertyTask.cs
deleted file mode 100644
index e5a8139bf77..00000000000
--- a/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/AddRuntimeOSPropertyTask.cs
+++ /dev/null
@@ -1,46 +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.
-
-using Microsoft.Build.Construction;
-using Microsoft.Build.Framework;
-
-namespace Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk
-{
-    public class GenerateRuntimeOSPropsFile : BuildTask
-    {
-        public const string RuntimeOSProperty = "RuntimeOS";
-
-        [Required]
-        public string RuntimePropsFilePath { get; set; }
-
-        public override bool Execute()
-        {
-            ProjectRootElement project = ProjectRootElement.Create();
-            CreateRuntimeIdentifier(project);
-            project.Save(RuntimePropsFilePath);
-            return !Log.HasLoggedErrors;
-        }
-
-        private void CreateRuntimeIdentifier(ProjectRootElement project)
-        {
-            string rid = PlatformAbstractions.RuntimeEnvironment.GetRuntimeIdentifier();
-            string[] ridParts = rid.Split('-');
-
-            if (ridParts.Length < 1)
-            {
-                throw new System.InvalidOperationException($"Unknown rid format {rid}.");
-            }
-
-            string osNameAndVersion = ridParts[0];
-
-            var propertyGroup = project.CreatePropertyGroupElement();
-            project.AppendChild(propertyGroup);
-
-            var runtimeProperty = propertyGroup.AddProperty(RuntimeOSProperty, osNameAndVersion);
-            runtimeProperty.Condition = $"'$({RuntimeOSProperty})' == ''";
-
-            Log.LogMessage($"Running on OS with RID '{rid}', so defaulting RuntimeOS to '{osNameAndVersion}'");
-        }
-    }
-}
diff --git a/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/build/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk.targets b/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/build/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk.targets
index b5db6220077..d5cc458d1e8 100644
--- a/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/build/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk.targets
+++ b/src/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk/src/build/Microsoft.DotNet.Build.Tasks.TargetFramework.Sdk.targets
@@ -3,7 +3,6 @@
   <UsingTask TaskName="ChooseBestP2PTargetFrameworkTask" AssemblyFile="$(DotNetBuildTasksTargetFrameworkSdkAssembly)" />
   <UsingTask TaskName="ChooseBestTargetFrameworksTask" AssemblyFile="$(DotNetBuildTasksTargetFrameworkSdkAssembly)" />
   <UsingTask TaskName="AddTargetFrameworksToProjectTask" AssemblyFile="$(DotNetBuildTasksTargetFrameworkSdkAssembly)" />
-  <UsingTask TaskName="GenerateRuntimeOSPropsFile" AssemblyFile="$(DotNetBuildTasksTargetFrameworkSdkAssembly)" />
   
   <PropertyGroup>
     <_OriginalTargetFrameworks>$(TargetFrameworks)</_OriginalTargetFrameworks>
@@ -120,8 +119,4 @@
     </PropertyGroup>
   </Target>
 
-  <Target Name="GenerateRuntimeOSPropsFile">
-    <GenerateRuntimeOSPropsFile RuntimePropsFilePath="$(RuntimePropsFile)" />
-  </Target>
-
 </Project>