diff --git a/BizHawk.Client.Common/movie/tasproj/StateManagerState.cs b/BizHawk.Client.Common/movie/tasproj/StateManagerState.cs
index 44c1cb7970..03214e8a0c 100644
--- a/BizHawk.Client.Common/movie/tasproj/StateManagerState.cs
+++ b/BizHawk.Client.Common/movie/tasproj/StateManagerState.cs
@@ -6,7 +6,7 @@ namespace BizHawk.Client.Common
 	/// <summary>
 	/// Represents a savestate in the <seealso cref="TasStateManager"/>
 	/// </summary>
-	internal class StateManagerState : IDisposable
+	internal class StateManagerState
 	{
 		public int Frame { get; }
 
@@ -19,9 +19,5 @@ namespace BizHawk.Client.Common
 			State = state;
 			Frame = frame;
 		}
-
-		public void Dispose()
-		{
-		}
 	}
 }
diff --git a/BizHawk.Client.Common/movie/tasproj/TasStateManager.cs b/BizHawk.Client.Common/movie/tasproj/TasStateManager.cs
index 432746ffe5..78656b5c44 100644
--- a/BizHawk.Client.Common/movie/tasproj/TasStateManager.cs
+++ b/BizHawk.Client.Common/movie/tasproj/TasStateManager.cs
@@ -3,7 +3,6 @@ using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 
-using BizHawk.Common;
 using BizHawk.Common.NumberExtensions;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Common.IEmulatorExtensions;
@@ -53,10 +52,6 @@ namespace BizHawk.Client.Common
 			_decay = new StateManagerDecay(_movie, this);
 		}
 
-		public void Dispose()
-		{
-		}
-
 		public void UpdateStateFrequency()
 		{
 			_stateFrequency = ((int)_expectedStateSize / Settings.MemStateGapDivider / 1024)