database: remove unused method

Change-Id: I66624be31b7cd13c90db88bc5f1059390c18b3f8

src/database.cpp

@@ -344,18 +344,6 @@ Database::deleteFrom(const std::string& table,                             // "t
         throw QueryDeleteError(query, table, where, bindsWhere);
 }
 
-void
-Database::truncateTable(const std::string& table)
-{
-    QSqlQuery query(db_);
-
-    auto prepareStr = std::string("TRUNCATE TABLE " + table);
-    query.prepare(prepareStr.c_str());
-
-    if (not query.exec())
-        throw QueryTruncateError(query, table);
-}
-
 Database::QueryError::QueryError(const QSqlQuery& query)
     : std::runtime_error(query.lastError().text().toStdString())
     , query(query)

src/database.h

@@ -217,14 +217,6 @@ public:
     void deleteFrom(const std::string& table,
                     const std::string& where,
                     const std::map<std::string, std::string>& bindsWhere);
-    /**
-     * Delete all rows from a table(truncate).
-     * @param table where to perfom the action on.
-     * @exception QueryDeleteError delete query failed.
-     *
-     * @note usually, identifiers between where and bindsWhere, are equals.
-     */
-    void truncateTable(const std::string& table);
     /**
      * Select data from table.
      * @param select column(s) to select.e