Remove unnecesary interface modifiers and redundant local variables

Habitica/src/com/habitrpg/android/habitica/AboutActivity.java

@@ -105,7 +105,7 @@ public class AboutActivity extends AppCompatActivity {
 
                     return new AboutFragment();
                 case 1:
-                    Fragment tab1 = new LibsBuilder()
+                    return new LibsBuilder()
                             //Pass the fields of your application to the lib so it can find all external lib information
                             .withFields(R.string.class.getFields())
                             .withActivityStyle(Libs.ActivityStyle.LIGHT_DARK_TOOLBAR)
@@ -117,8 +117,6 @@ public class AboutActivity extends AppCompatActivity {
                             .withAboutVersionShownName(true)
                             .withAnimations(true)
                             .fragment();
-
-                    return tab1;
                 case 2:
                     PaperboyBuilder builder = new PaperboyBuilder(AboutActivity.this)
                             .setViewType(ViewTypes.HEADER)

Habitica/src/com/habitrpg/android/habitica/ContentCache.java

@@ -41,9 +41,7 @@ public class ContentCache {
         final QuestContent quest = new Select().from(QuestContent.class).where(Condition.column("key").eq(key)).querySingle();
 
         if (quest != null) {
-            QuestBoss boss = new Select().from(QuestBoss.class).where(Condition.column("key").eq(key)).querySingle();
-            quest.boss = boss;
-
+            quest.boss = new Select().from(QuestBoss.class).where(Condition.column("key").eq(key)).querySingle();
             cb.GotQuest(quest);
         } else {
 

Habitica/src/com/habitrpg/android/habitica/LoginActivity.java

@@ -325,7 +325,7 @@ public class LoginActivity extends AppCompatActivity
                     .putString(getString(R.string.SP_APIToken), key)
                     .putString(getString(R.string.SP_userID), user)
                     .commit();
-            if (ans != true) {
+            if (!ans) {
                 throw new Exception("PB_string_commit");
             }
             startMainActivity();

Habitica/src/com/habitrpg/android/habitica/callbacks/HabitRPGUserCallback.java

@@ -38,8 +38,8 @@ public class HabitRPGUserCallback implements Callback<HabitRPGUser> {
     }
 
     public interface OnUserReceived {
-        public void onUserReceived(HabitRPGUser user);
+        void onUserReceived(HabitRPGUser user);
 
-        public void onUserFail();
+        void onUserFail();
     }
 }

Habitica/src/com/habitrpg/android/habitica/callbacks/TaskScoringCallback.java

@@ -41,8 +41,8 @@ public class TaskScoringCallback implements Callback<TaskDirectionData> {
     }
 
     public interface OnTaskScored {
-        public void onTaskDataReceived(TaskDirectionData data);
+        void onTaskDataReceived(TaskDirectionData data);
 
-        public void onTaskScoringFailed();
+        void onTaskScoringFailed();
     }
 }

Habitica/src/com/habitrpg/android/habitica/userpicture/BitmapUtils.java

@@ -26,8 +26,7 @@ public class BitmapUtils {
             if (!f.exists()) {
                 return null;
             }
-            Bitmap tmp = BitmapFactory.decodeFile(filename);
-            return tmp;
+            return BitmapFactory.decodeFile(filename);
         } catch (Exception e) {
             return null;
         }

Habitica/src/com/magicmicky/habitrpgwrapper/lib/models/TaskDirection.java

@@ -7,7 +7,7 @@ public enum TaskDirection {
     up("up"),
     down("down");
     private final String dir;
-    private TaskDirection(String dir) {
+    TaskDirection(String dir) {
         this.dir=dir;
     }
     public String toString() {