Return results from the first db that has results

This patch returns results from the first database that has results.
This is done for performance and to avoid having to sort the results.

app/src/main/java/com/quran/labs/androidquran/data/QuranDataProvider.java

@@ -8,7 +8,6 @@
 import android.content.UriMatcher;
 import android.database.Cursor;
 import android.database.MatrixCursor;
-import android.database.MergeCursor;
 import android.net.Uri;
 import android.provider.BaseColumns;
 import android.support.annotation.NonNull;
@@ -25,7 +24,6 @@
 import com.quran.labs.androidquran.util.QuranSettings;
 import com.quran.labs.androidquran.util.QuranUtils;
 
-import java.util.ArrayList;
 import java.util.List;
 
 import javax.inject.Inject;
@@ -201,7 +199,6 @@ private Cursor search(String query, List<LocalTranslation> translations) {
     int start = haveArabic ? -1 : 0;
     int total = translations.size() + (haveArabic ? 1 : 0);
 
-    List<Cursor> cursorList = new ArrayList<>();
     for (int i = start; i < total; i++) {
       String databaseName;
       if (i < 0) {
@@ -221,16 +218,11 @@ private Cursor search(String query, List<LocalTranslation> translations) {
       }
 
       Cursor cursor = search(query, databaseName, true);
-      if (cursor != null) {
-        cursorList.add(cursor);
+      if (cursor != null && cursor.getCount() > 0) {
+        return cursor;
       }
     }
-
-    Cursor[] cursors = new Cursor[cursorList.size()];
-    for (int i = 0, size = cursorList.size(); i < size; i++) {
-      cursors[i] = cursorList.get(i);
-    }
-    return new MergeCursor(cursors);
+    return null;
   }
 
   private Cursor search(String query, String databaseName, boolean wantSnippets) {