docs: def remove_binding(self, binding):
          """ Remove a binding
          
          Remove an object from the MongoDB storage for caching
          
          Args:
              binding (AtlasServiceBinding.Binding): binding
              
          Raises:
              ErrStorageMongoConnection: Error during MongoDB communication.
              ErrStorageRemoveBinding: Failed to remove the binding
          """
          
          # query
          query = { "binding_id" : binding.binding_id, "instance_id" : binding.instance.instance_id }
          
          # delete the binding
          try:
              result = self.broker.delete_one(query)
          except:
              raise ErrStorageMongoConnection("Remove Binding")
  
          # return the result
          if result is not None and result.deleted_count == 1:
              binding.provisioned = False
          else:
              raise ErrStorageRemoveBinding(binding.binding_id)