docs: public int delete(String table, String whereClause, String[] whereArgs) {
          acquireReference();
          try {
              SQLiteStatement statement =  new SQLiteStatement(this, "DELETE FROM " + table +
                      (!TextUtils.isEmpty(whereClause) ? " WHERE " + whereClause : ""), whereArgs);
              try {
                  return statement.executeUpdateDelete();
              } finally {
                  statement.close();
              }
          } finally {
              releaseReference();
          }
      }