deleted file mode 100644
--- a/mobile/android/base/java/org/mozilla/gecko/animation/BounceAnimatorBuilder.java
+++ /dev/null
@@ -1,54 +0,0 @@
-package org.mozilla.gecko.animation;
-
-import java.util.LinkedList;
-import java.util.List;
-
-import android.view.View;
-import android.view.animation.AccelerateInterpolator;
-
-import com.nineoldandroids.animation.Animator;
-import com.nineoldandroids.animation.AnimatorSet;
-import com.nineoldandroids.animation.ObjectAnimator;
-import com.nineoldandroids.animation.ValueAnimator;
-
-/**
- * This is an Animator that chains AccelerateInterpolators. It can be used to create a customized
- * Bounce animation.
- *
- * After constructing an instance, animations can be queued up sequentially with the
- * {@link #queue(Attributes) queue} method.
- */
-public class BounceAnimatorBuilder extends ValueAnimator {
-
-    public static final class Attributes {
-        public final float value;
-        public final int durationMs;
-
-        public Attributes(float value, int duration) {
-            this.value = value;
-            this.durationMs = duration;
-        }
-    }
-
-    private final View mView;
-    private final String mPropertyName;
-    private final List<Animator> animatorChain = new LinkedList<Animator>();
-
-    public BounceAnimatorBuilder(View view, String property) {
-        mView = view;
-        mPropertyName = property;
-    }
-
-    public void queue(Attributes attrs) {
-        final ValueAnimator animator = ObjectAnimator.ofFloat(mView, mPropertyName, attrs.value);
-        animator.setDuration(attrs.durationMs);
-        animator.setInterpolator(new AccelerateInterpolator());
-        animatorChain.add(animator);
-    }
-
-    public AnimatorSet build(){
-        AnimatorSet animatorSet = new AnimatorSet();
-        animatorSet.playSequentially(animatorChain);
-        return animatorSet;
-    }
-}

--- a/mobile/android/base/moz.build
+++ b/mobile/android/base/moz.build
@@ -190,17 +190,16 @@ gbjar.sources += ['java/org/mozilla/geck
     'AccountsHelper.java',
     'ActionModeCompat.java',
     'ActionModeCompatView.java',
     'ActivityHandlerHelper.java',
     'AlarmReceiver.java',
     'AndroidGamepadManager.java',
     'animation/AnimationUtils.java',
     'animation/AnimatorProxy.java',
-    'animation/BounceAnimatorBuilder.java',
     'animation/HeightChangeAnimation.java',
     'animation/PropertyAnimator.java',
     'animation/Rotate3DAnimation.java',
     'animation/TransitionsTracker.java',
     'animation/ViewHelper.java',
     'ANRReporter.java',
     'AppNotificationClient.java',
     'BaseGeckoInterface.java',