The effect of the CANCEL WATCH command is symmetrical with the
    effect of the SET WATCH command. To cancel a watchpoint that was
    established at a specific location with the SET WATCH command,
    specify that same location with CANCEL WATCH. Thus, to cancel
    a watchpoint that was set on an entire aggregate, specify the
    aggregate in the CANCEL WATCH command; to cancel a watchpoint
    that was set on one element of an aggregate, specify that element
    in the CANCEL WATCH command.

    The CANCEL ALL command also cancels all watchpoints.

    To cause the debugger to temporarily ignore a watchpoint, but
    not delete the definition of the watchpoint, use the command
    DEACTIVATE WATCH. You can later activate the watchpoint (with
    ACTIVATE WATCH).

    Related commands:

       (ACTIVATE,DEACTIVATE,SET,SHOW) WATCH
       CANCEL ALL
       (SET,SHOW,CANCEL) BREAK
       (SET,SHOW,CANCEL) TRACE