Removed unused imports

Author: Wohlstand

OPNMIDI-Player/src/main/java/ru/wohlsoft/opnmidiplayer/Player.java

@@ -4,7 +4,6 @@
 import android.app.ActivityManager;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
-import android.content.ContentResolver;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -19,7 +18,6 @@
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 import android.os.Bundle;
-import android.provider.Settings;
 import android.text.InputType;
 import android.util.Log;
 import android.view.KeyEvent;

OPNMIDI-Player/src/main/java/ru/wohlsoft/opnmidiplayer/PlayerService.java

@@ -8,7 +8,6 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.Binder;