Allow duplicate caldav calendar names

app/src/main/java/org/tasks/caldav/CaldavCalendarSettingsActivity.java

@@ -205,20 +205,8 @@ public class CaldavCalendarSettingsActivity extends ThemedInjectingAppCompatActi
 
     String name = getNewName();
 
-    boolean failed = false;
-
     if (isEmpty(name)) {
       nameLayout.setError(getString(R.string.name_cannot_be_empty));
-      failed = true;
-    } else {
-      CaldavCalendar calendarByName = caldavDao.getCalendar(caldavAccount.getUuid(), name);
-      if (calendarByName != null && !calendarByName.equals(caldavCalendar)) {
-        nameLayout.setError(getString(R.string.duplicate_name));
-        failed = true;
-      }
-    }
-
-    if (failed) {
       return;
     }
 

app/src/main/java/org/tasks/data/CaldavDao.java

@@ -70,10 +70,6 @@ public interface CaldavDao {
   @Query("SELECT * FROM caldav_lists WHERE cdl_uuid = :uuid LIMIT 1")
   CaldavCalendar getCalendar(String uuid);
 
-  @Query(
-      "SELECT * FROM caldav_lists WHERE cdl_account = :account AND cdl_name = :name COLLATE NOCASE LIMIT 1")
-  CaldavCalendar getCalendar(String account, String name);
-
   @Query("SELECT cd_object FROM caldav_tasks WHERE cd_calendar = :calendar")
   List<String> getObjects(String calendar);