Fix to remove TF op usage outside of the initializer fn (due to deferred execution of initializer fn, this prevent issues with graph mismatch).

PiperOrigin-RevId: 157620177

tensorflow/contrib/framework/python/ops/checkpoint_ops.py

@@ -17,6 +17,8 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
+import math
+
 from tensorflow.contrib.framework.python.ops import gen_checkpoint_ops
 from tensorflow.contrib.util import loader
 from tensorflow.python.framework import dtypes
@@ -422,8 +424,7 @@ def load_embedding_initializer(ckpt_path,
     # TODO(b/25671353): This should be kept in sync with the stddev used by
     # feature_column.py's _EmbeddingColumn.
     initializer = init_ops.truncated_normal_initializer(
-        stddev=1.0 /
-        math_ops.sqrt(math_ops.cast(embedding_dim, dtypes.float32)))
+        stddev=1.0 / math.sqrt(embedding_dim))
 
   return load_and_remap_matrix_initializer(
       ckpt_path=ckpt_path,