diff --git a/src/Runner.Worker/Handlers/GNUMakeManager.cs b/src/Runner.Worker/Handlers/GNUMakeManager.cs
deleted file mode 100644
index ab8a780ac..000000000
--- a/src/Runner.Worker/Handlers/GNUMakeManager.cs
+++ /dev/null
@@ -1,36 +0,0 @@
-using System.Text.RegularExpressions;
-using GitHub.Runner.Sdk;
-
-namespace GitHub.Runner.Worker.Handlers
-{
-    public sealed class GNUMakeManager
-    {
-        public GNUMakeManager(IExecutionContext executionContext)
-        {
-            _executionContext = executionContext;
-        }
-
-        public void OnDataReceived(object sender, ProcessDataReceivedEventArgs e)
-        {
-            var line = e.Data;
-
-
-            var startMatch = s_startMakeTargetRegex.Match(line);
-            if (startMatch.Success)
-            {
-                _executionContext.Output($"[DEBUG] Matched the start of target {startMatch.Value}.");
-            }
-
-            var endMatch = s_endMakeTargetRegex.Match(line);
-            if (endMatch.Success)
-            {
-                _executionContext.Output($"[DEBUG] Matched the end of target {endMatch.Value}.");
-            }
-        }
-
-        private readonly IExecutionContext _executionContext;
-
-        private static readonly Regex s_startMakeTargetRegex = new Regex(@"Must remake target `(.+)'\.$", RegexOptions.Compiled);
-        private static readonly Regex s_endMakeTargetRegex = new Regex(@"Successfully remade target file `(.+)'\.$", RegexOptions.Compiled);
-    }
-}
\ No newline at end of file
diff --git a/src/Runner.Worker/Handlers/ScriptHandler.cs b/src/Runner.Worker/Handlers/ScriptHandler.cs
index 3a8764174..da395c27a 100644
--- a/src/Runner.Worker/Handlers/ScriptHandler.cs
+++ b/src/Runner.Worker/Handlers/ScriptHandler.cs
@@ -289,8 +289,6 @@ namespace GitHub.Runner.Worker.Handlers
             using (var stdoutManager = new OutputManager(ExecutionContext, ActionCommandManager))
             using (var stderrManager = new OutputManager(ExecutionContext, ActionCommandManager))
             {
-                var makeManager = new GNUMakeManager(ExecutionContext);
-                StepHost.OutputDataReceived += makeManager.OnDataReceived;
                 StepHost.OutputDataReceived += stdoutManager.OnDataReceived;
                 StepHost.ErrorDataReceived += stderrManager.OnDataReceived;