INT 2F CU - NETWORK REDIRECTOR - DELETE REMOTE FILE
        AX = 1113h
        SS = DS = DOS DS
        SDA first filename pointer -> fully-qualified filename in DOS DS
        SDA CDS pointer -> current directory structure for drive with file
Return: CF set on error
            AX = DOS error code (see INT 21/AH=59h)
        CF clear if successful
Notes:  this function is called by the DOS 3.1+ kernel
        the filespec may contain wildcards
SeeAlso: AX=1114h,INT 21/AH=41h,INT 21/AH=60h

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