Add bool support for Dimension.

PiperOrigin-RevId: 349447392
Change-Id: I1fa3879db4f9fc8e760299d91700e62c9657b0d6

tensorflow/python/framework/tensor_shape.py

@@ -234,10 +234,6 @@ class Dimension(object):
       return None
     return self._value != other.value
 
-  def __bool__(self):
-    """Equivalent to `bool(self.value)`."""
-    return bool(self._value)
-
   def __int__(self):
     return self._value
 

tensorflow/python/framework/tensor_shape_test.py

@@ -195,14 +195,6 @@ class DimensionTest(test_util.TensorFlowTestCase):
     with self.assertRaises(TypeError):
       tensor_shape.Dimension(dtypes.string)
 
-  def testBool(self):
-    one = tensor_shape.Dimension(1)
-    zero = tensor_shape.Dimension(0)
-    has_none = tensor_shape.Dimension(None)
-    self.assertTrue(one)
-    self.assertFalse(zero)
-    self.assertFalse(has_none)
-
   def testMod(self):
     four = tensor_shape.Dimension(4)
     nine = tensor_shape.Dimension(9)