Remove not used code

Author: SignalRT

LLama/Batched/Conversation.cs

@@ -23,7 +23,6 @@ public sealed class Conversation
     /// </summary>
     private bool _forked;
     private readonly List<SafeMtmdEmbed> _mtmdEmbeds = new();
-    private int _pendingMtmdPositions;
     private int? _mtmdLogitsIndex;
     private MtmdChunkSequence? _pendingMtmdSequence;
     private readonly List<LLamaToken> _embed_inps = new();
@@ -417,7 +416,6 @@ private void PromptMultimodal(string text, bool addBos)
 
             var sequence = MtmdChunkSequence.Create(chunks, Executor.ClipModel);
             _pendingMtmdSequence = sequence;
-            _pendingMtmdPositions = sequence.TotalPositions;
 
             var epoch = Executor.QueueMtmdBatch(this, sequence);
             chunks = null;
@@ -514,7 +512,6 @@ internal void OnMtmdEvaluationCompleted(long newPast, MtmdChunkSequence sequence
         _pendingMtmdSequence = null;
 
         _end = (LLamaPos)checked((int)newPast);
-        _pendingMtmdPositions = 0;
 
         if (_batchSampleIndices.Length == 0)
             _batchSampleIndices = new int[4];
@@ -544,7 +541,6 @@ internal void OnMtmdEvaluationFailed(int status)
     {
         _pendingMtmdSequence?.Dispose();
         _pendingMtmdSequence = null;
-        _pendingMtmdPositions = 0;
         _mtmdLogitsIndex = null;
         _requiredEpoch = Executor.Epoch;
         DisposeQueuedMedia();