The DELETE_FILE procedure deletes one or more files.
Syntax:
DELETE_FILE( file_name [, error_return] )
The 'file-name' specification can contain an explicit device and
directory name, plus it must contain a file name, a file type or
extension, and a version number. If you omit either the
directory or device name, VSI Pascal uses the directory you are
working in at the time of program execution. The 'error_return'
parameter returns an error recovery code if specified.