Remove trainStep override, clean up walkthrough code

index.html

@@ -2702,17 +2702,6 @@
         document.getElementById('walkthroughPrev').addEventListener('click', prevWalkthroughStep);
         document.getElementById('walkthroughSkip').addEventListener('click', exitWalkthrough);
 
-        // Override training speed when in walkthrough mode
-        const originalTrainStep = trainStep;
-        trainStep = function() {
-            originalTrainStep();
-            
-            if (walkthroughActive && isTraining) {
-                clearInterval(trainInterval);
-                trainInterval = setInterval(trainStep, walkthroughTrainingSpeed);
-            }
-        };
-
         // Initialize
         startAnimation();
     </script>