message: Remove methods from tf.Variable which in RefVariable are to be deprecated and aren't supported in Resource Variable
diff: @@ -1055,27 +1055,6 @@ class Variable(six.with_metaclass(VariableMetaclass,
  else:
  return None
  - def __iadd__(self, other):
  - raise NotImplementedError
  -
  - def __isub__(self, other):
  - raise NotImplementedError
  -
  - def __imul__(self, other):
  - raise NotImplementedError
  -
  - def __idiv__(self, other):
  - raise NotImplementedError
  -
  - def __itruediv__(self, other):
  - raise NotImplementedError
  -
  - def __irealdiv__(self, other):
  - raise NotImplementedError
  -
  - def __ipow__(self, other):
  - raise NotImplementedError
  -
  @tf_export(v1=["Variable"])
  class VariableV1(Variable):
  