code: def clear_break(
              self, filename, lineno=None, temporary=False, cond=None,
              funcname=None
      ):
          
          log.info(
              'Removing break fn:%s lno:%s tmp:%s cond:%s fun:%s' %
              (filename, lineno, temporary, cond, funcname)
          )
  
          breakpoint = self.get_break(
              filename, lineno, temporary or False, cond, funcname
          )
          if temporary is None and breakpoint not in self.breakpoints:
              breakpoint = self.get_break(filename, lineno, True, cond, funcname)
  
          try:
              self.breakpoints.remove(breakpoint)
              log.info('Breakpoint %r removed' % breakpoint)
          except Exception:
              log.info('Breakpoint %r not removed: not found' % breakpoint)
docs: Remove a breakpoint