NAME
        RemTOF - remove a task from the VBlank interrupt server chain.
   SYNOPSIS
        RemTOF(i);
        VOID RemTOF(struct isrvstr *);
   FUNCTION
        Removes a task from the vertical-blanking interval interrupt server
        chain.
   INPUTS
        i - pointer to an isrvstr structure
   SEE ALSO
        addtof(), <graphics/graphint.h>