application/Espo/Core/Upgrades/Actions/Base.php
protected function deletePackageArchive()
    {
        $packageArchive = $this->getPackagePath(true);
        $res = $this->getFileManager()->removeFile($packageArchive);

        return $res;
    }
protected function deletePackageArchive()
    {
        $packageArchive = $this->getPackagePath(true);
        $res = $this->getFileManager()->removeFile($packageArchive);

        return $res;
    }
protected function deletePackageArchive ( ) { $ packageArchive = $ this -> getPackagePath ( true ) ; $ res = $ this -> getFileManager ( ) -> removeFile ( $ packageArchive ) ; return $ res ; }
Delete temporary package archive

@return boolean
Delete temporary package archive