code: public function dropCommentFromTable($table)
      {
          $time = $this->beginCommand("drop comment from table $table");
          $this->db->createCommand()->dropCommentFromTable($table)->execute();
          $this->endCommand($time);
      }
docs: Builds a SQL statement for dropping comment from table.
  
  @param string $table the table whose column is to be commented. The table name will be properly quoted by the method.
  @since 2.0.8