Removed related import

Author: litetex

app/src/main/java/org/schabi/newpipe/player/Player.java

@@ -51,7 +51,6 @@
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
-import android.animation.ValueAnimator;
 import android.annotation.SuppressLint;
 import android.content.BroadcastReceiver;
 import android.content.Context;