Removing lookahead concept

src/bin/desktop.rs

@@ -134,7 +134,6 @@ struct CagireDesktop {
     sequencer: Option<SequencerHandle>,
     playing: Arc<AtomicBool>,
     nudge_us: Arc<AtomicI64>,
-    lookahead_ms: Arc<AtomicU32>,
     metrics: Arc<EngineMetrics>,
     scope_buffer: Arc<ScopeBuffer>,
     spectrum_buffer: Arc<SpectrumBuffer>,
@@ -172,7 +171,6 @@ impl CagireDesktop {
             sequencer: Some(b.sequencer),
             playing: b.playing,
             nudge_us: b.nudge_us,
-            lookahead_ms: b.lookahead_ms,
             metrics: b.metrics,
             scope_buffer: b.scope_buffer,
             spectrum_buffer: b.spectrum_buffer,
@@ -281,7 +279,6 @@ impl CagireDesktop {
                 audio_tx: &sequencer.audio_tx,
                 seq_cmd_tx: &sequencer.cmd_tx,
                 nudge_us: &self.nudge_us,
-                lookahead_ms: &self.lookahead_ms,
             };
 
             if let InputResult::Quit = handle_key(&mut input_ctx, key) {