message: Remove unnecessary assignment in in BaseResourceVariable
diff: @@ -431,7 +431,6 @@ class BaseResourceVariable(variables.VariableV1, core.Tensor):
  self._shape = tensor_shape.as_shape(shape)
  self._dtype = dtypes.as_dtype(dtype)
  self._handle = handle
  - self._graph_element = graph_element
  self._unique_id = unique_id
  self._handle_name = handle_name + ":0"
  self._constraint = constraint
  