remove unused param `buffer_size`

model_zoo/official/cv/googlenet/README.md

@@ -163,7 +163,6 @@ Parameters for both training and evaluation can be set in config.py
   'epoch_size': 125         # total training epochs
   'momentum': 0.9           # momentum
   'weight_decay': 5e-4      # weight decay value
-  'buffer_size': 10         # buffer size
   'image_height': 224       # image height used as input to the model
   'image_width': 224        # image width used as input to the model
   'data_path': './cifar10'  # absolute full path to the train and evaluation datasets

model_zoo/official/cv/googlenet/src/config.py

@@ -26,7 +26,6 @@ cifar_cfg = edict({
     'epoch_size': 125,
     'momentum': 0.9,
     'weight_decay': 5e-4,
-    'buffer_size': 10,
     'image_height': 224,
     'image_width': 224,
     'data_path': './cifar10',
@@ -47,7 +46,6 @@ imagenet_cfg = edict({
     'epoch_size': 300,
     'momentum': 0.9,
     'weight_decay': 1e-4,
-    'buffer_size': None,  # invalid parameter
     'image_height': 224,
     'image_width': 224,
     'data_path': './ImageNet_Original/train/',