1 files changed, 0 insertions, 18 deletions
diff --git a/tensorflow/python/ops/math_grad.py b/tensorflow/python/ops/math_grad.py
index a0f505e47b..024158e709 100644
--- a/tensorflow/python/ops/math_grad.py
+++ b/tensorflow/python/ops/math_grad.py
@@ -369,24 +369,6 @@ def _Log1pGrad(op, grad):
     return grad * math_ops.reciprocal(1 + x)
 
 
-@ops.RegisterGradient("Sinh")
-def _SinhGrad(op, grad):
-  """Returns grad * cosh(x)."""
-  x = op.inputs[0]
-  with ops.control_dependencies([grad.op]):
-    x = math_ops.conj(x)
-    return grad * math_ops.cosh(x)
-
-
-@ops.RegisterGradient("Cosh")
-def _CoshGrad(op, grad):
-  """Returns grad * sinh(x)."""
-  x = op.inputs[0]
-  with ops.control_dependencies([grad.op]):
-    x = math_ops.conj(x)
-    return grad * math_ops.sinh(x)
-
-
 @ops.RegisterGradient("Tanh")
 def _TanhGrad(op, grad):
   """Returns grad * (1 - tanh(x) * tanh(x))."""