diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/LineChartRenderer.java b/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/LineChartRenderer.java
index 8c5e0bebd9..3253a88400 100644
--- a/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/LineChartRenderer.java
+++ b/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/LineChartRenderer.java
@@ -8,7 +8,6 @@
 import android.graphics.drawable.Drawable;
 
 import com.github.mikephil.charting.animation.ChartAnimator;
-import com.github.mikephil.charting.charts.LineChart;
 import com.github.mikephil.charting.data.Entry;
 import com.github.mikephil.charting.data.LineData;
 import com.github.mikephil.charting.data.LineDataSet;
@@ -762,9 +761,6 @@ public Bitmap.Config getBitmapConfig() {
         return mBitmapConfig;
     }
 
-    /**
-     * Releases the drawing bitmap. This should be called when {@link LineChart#onDetachedFromWindow()}.
-     */
     public void releaseBitmap() {
         if (mBitmapCanvas != null) {
             mBitmapCanvas.setBitmap(null);
diff --git a/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/PieChartRenderer.java b/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/PieChartRenderer.java
index ba429e97da..3dbdd0f1f7 100644
--- a/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/PieChartRenderer.java
+++ b/MPChartLib/src/main/java/com/github/mikephil/charting/renderer/PieChartRenderer.java
@@ -16,7 +16,6 @@
 import android.text.TextPaint;
 
 import com.github.mikephil.charting.animation.ChartAnimator;
-import com.github.mikephil.charting.charts.LineChart;
 import com.github.mikephil.charting.charts.PieChart;
 import com.github.mikephil.charting.data.Entry;
 import com.github.mikephil.charting.data.PieData;
@@ -1054,9 +1053,6 @@ protected void drawRoundedSlices(Canvas c) {
         MPPointF.recycleInstance(center);
     }
 
-    /**
-     * Releases the drawing bitmap. This should be called when {@link LineChart#onDetachedFromWindow()}.
-     */
     public void releaseBitmap() {
         if (mBitmapCanvas != null) {
             mBitmapCanvas.setBitmap(null);