Compatibility: DPMI 0.9+
Expects: AX    0001H
BX    selector for the descriptor to be freed
                                                                  
Returns: CF    NC (clear) if successful; else AX = DPMI Error Code
                                                                  
Info: Frees the entry in the LDT that corresponds to the specified
selector in BX.

This does not free any memory allocation associated with the
selector.

See Also: DPMI API
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INT 31H 0001H: Free LDT Descriptor