minor cleanup

app/src/main/java/gr/thmmy/mthmmy/activities/topic/tasks/TopicTask.java

@@ -1,7 +1,6 @@
 package gr.thmmy.mthmmy.activities.topic.tasks;
 
 import android.os.AsyncTask;
-import android.util.SparseArray;
 
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
@@ -9,13 +8,11 @@ import org.jsoup.nodes.Element;
 
 import java.io.IOException;
 import java.util.ArrayList;
-import java.util.Objects;
 
 import gr.thmmy.mthmmy.activities.topic.TopicParser;
 import gr.thmmy.mthmmy.base.BaseApplication;
 import gr.thmmy.mthmmy.model.Post;
 import gr.thmmy.mthmmy.model.ThmmyPage;
-import gr.thmmy.mthmmy.utils.parsing.ParseException;
 import gr.thmmy.mthmmy.utils.parsing.ParseHelpers;
 import okhttp3.Request;
 import okhttp3.Response;
@@ -143,7 +140,6 @@ public class TopicTask extends AsyncTask<String, Void, TopicTaskResult> {
 
     public interface TopicTaskObserver {
         void onTopicTaskStarted();
-
         void onTopicTaskCancelled();
     }