Int 31 Fn 0B01  P - Dpmi 0.9+ - Clear Debug Watchpoint                     [E]

   AX = 0B01h
   BX = watchpoint handle

Return: CF clear if successful
   CF set on error
       AX = error code (DPMI 1.0+) (8023h) (see #2814)

Note:  the watchpoint handle is freed

See Also: AX=0B00h