Inlined `Variable._AsTensor`

Both implementations used `Variable.value`.

PiperOrigin-RevId: 225416178

tensorflow/python/ops/array_ops.py

@@ -890,7 +890,7 @@ def _SliceHelperVar(var, slice_spec):
 
   """
 
-  return _slice_helper(var._AsTensor(), slice_spec, var)
+  return _slice_helper(var.value(), slice_spec, var)
 
 
 ops.Tensor._override_operator("__getitem__", _slice_helper)

tensorflow/python/ops/resource_variable_ops.py

@@ -809,9 +809,6 @@ class ResourceVariable(variables.RefVariable):
     return ResourceVariable(
         variable_def=variable_def, import_scope=import_scope)
 
-  def _AsTensor(self):
-    return self.value()
-
   def _ref(self):
     """Unsupported."""
     raise NotImplementedError("ResourceVariable does not implement _ref()")

tensorflow/python/ops/variables.py

@@ -932,7 +932,7 @@ class Variable(six.with_metaclass(VariableMetaclass,
 
     def _run_op(a, *args, **kwargs):
       # pylint: disable=protected-access
-      return tensor_oper(a._AsTensor(), *args, **kwargs)
+      return tensor_oper(a.value(), *args, **kwargs)
 
     functools.update_wrapper(_run_op, tensor_oper)
     setattr(cls, operator, _run_op)
@@ -1603,16 +1603,6 @@ class RefVariable(VariableV1):
     """Conversion function for Graph.as_graph_element()."""
     return self._variable
 
-  def _AsTensor(self):  # pylint: disable=invalid-name
-    """Converts this variable to a Tensor.
-
-    See `tf.Variable.value`.
-
-    Returns:
-      A `Tensor` containing the value of the variable.
-    """
-    return self._snapshot
-
   def value(self):
     """Returns the last snapshot of this variable.