fix model call (#4132)

Author: Taylor Robie

official/resnet/cifar10_main.py

@@ -176,8 +176,6 @@ def __init__(self, resnet_size, data_format=None, num_classes=_NUM_CLASSES,
         conv_stride=1,
         first_pool_size=None,
         first_pool_stride=None,
-        second_pool_size=8,
-        second_pool_stride=1,
         block_sizes=[num_blocks] * 3,
         block_strides=[1, 2, 2],
         final_size=64,

official/resnet/imagenet_main.py

@@ -235,8 +235,6 @@ def __init__(self, resnet_size, data_format=None, num_classes=_NUM_CLASSES,
         conv_stride=2,
         first_pool_size=3,
         first_pool_stride=2,
-        second_pool_size=7,
-        second_pool_stride=1,
         block_sizes=_get_block_sizes(resnet_size),
         block_strides=[1, 2, 2, 2],
         final_size=final_size,