diff --git a/osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs b/osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs
index aa4f2719a4..5045a2954b 100644
--- a/osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs
+++ b/osu.Game.Rulesets.Osu/Difficulty/OsuPerformanceCalculator.cs
@@ -325,24 +325,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty
             return flashlightValue;
         }
 
-        private double calculateEffectiveMissCount(OsuDifficultyAttributes attributes)
-        {
-            // Guess the number of misses + slider breaks from combo
-            double comboBasedMissCount = 0.0;
-
-            if (attributes.SliderCount > 0)
-            {
-                double fullComboThreshold = attributes.MaxCombo - 0.1 * attributes.SliderCount;
-                if (scoreMaxCombo < fullComboThreshold)
-                    comboBasedMissCount = fullComboThreshold / Math.Max(1.0, scoreMaxCombo);
-            }
-
-            // Clamp miss count to maximum amount of possible breaks
-            comboBasedMissCount = Math.Min(comboBasedMissCount, countOk + countMeh + countMiss);
-
-            return Math.Max(countMiss, comboBasedMissCount);
-        }
-
         /// <summary>
         /// Using <see cref="calculateDeviation"/> estimates player's deviation on speed notes, assuming worst-case.
         /// Treats all speed notes as hit circles. This is not good way to do this, but fixing this is impossible under the limitation of current speed pp.