Int 21 Fn 3A  - Dos 2+ - "rmdir" - Remove Subdirectory                     [D]

   AH = 3Ah
   DS:DX -> ASCIZ pathname of directory to be removed

Return: CF clear if successful
       AX destroyed
   CF set on error
       AX = error code (03h,05h,06h,10h) (see #1366 at AH=59h/BX=0000h)

Notes: directory must be empty (contain only '.' and '..' entries)
   under the FlashTek X-32 DOS extender, the pointer is in DS:EDX

See Also: AH=39h,AH=3Bh,AX=713Ah,AH=E2h/SF=0Bh,INT 2F/AX=1101h,INT 60/DI=0512h