fix validation error

Author: lucasteles

src/Backdash/Session/Backends/RemoteSession.cs

@@ -16,8 +16,7 @@
 
 namespace Backdash.Backends;
 
-sealed class RemoteSession<TInput> : INetcodeSession<TInput>
-    where TInput : unmanaged
+sealed class RemoteSession<TInput> : INetcodeSession<TInput> where TInput : unmanaged
 {
     readonly NetcodeOptions options;
     readonly Logger logger;

src/Backdash/Synchronizing/Input/InputQueue.cs

@@ -109,17 +109,14 @@ public bool GetConfirmedInput(in Frame requestedFrame, ref GameInput<TInput> inp
 
     public bool GetInput(in Frame requestedFrame, out GameInput<TInput> input)
     {
-        if (inputs.IsEmpty)
-            throw new InvalidOperationException("Can't get inputs: queue is empty.");
-
         logger.Write(LogLevel.Trace, $"Queue {QueueId} => requesting input frame {requestedFrame.Number}.");
         // No one should ever try to grab any input when we have a prediction error.
         // Doing so means that we're just going further down the wrong path.
         ThrowIf.Assert(firstIncorrectFrame.IsNull);
         // Remember the last requested frame number for later. We'll need this in AddInput() to drop out of prediction mode.
         lastFrameRequested = requestedFrame;
         if (requestedFrame.Number < FirstInput.Frame.Number)
-            throw new InvalidOperationException(
+            throw new NetcodeAssertionException(
                 $"Requested frame ({requestedFrame.Number}) can not be smaller than the first input frame ({FirstInput.Frame.Number})."
             );