code: def remove_permission_logic(model, permission_logic, fail_silently=True):
      
      if not hasattr(model, '_permission_logics'):
          model._permission_logics = set()
      if not isinstance(permission_logic, PermissionLogic):
          # remove all permission logic of related
          remove_set = set()
          for _permission_logic in model._permission_logics:
              if _permission_logic.__class__ == permission_logic:
                  remove_set.add(_permission_logic)
          # difference
          model._permission_logics = model._permission_logics.difference(remove_set)
      else:
          if fail_silently and permission_logic not in model._permission_logics:
              pass
          else:
              model._permission_logics.remove(permission_logic)
docs: Remove permission logic to the model
  
      Parameters
      ----------
      model : django model class
          A django model class which will be treated by the specified permission
          logic
      permission_logic : permission logic class or instance
          A permission logic class or instance which will be used to determine
          permission of the model
      fail_silently : boolean
          If `True` then do not raise KeyError even the specified permission logic
          have not registered.
  
      Examples
      --------
      >>> from django.db import models
      >>> from permission.logics import PermissionLogic
      >>> class Mock(models.Model):
      ...     name = models.CharField('name', max_length=120)
      >>> logic = PermissionLogic()
      >>> add_permission_logic(Mock, logic)
      >>> remove_permission_logic(Mock, logic)