remove usused arguments for maxout_layer, refine notes for pad_layer

python/paddle/trainer_config_helpers/layers.py

@@ -3677,7 +3677,7 @@ def pad_layer(input,
 
     For example,
 
-    .. code-block::
+    .. code-block:: python
 
        input(2,2,2,3)  = [
                            [ [[1,2,3], [3,4,5]],
@@ -3687,6 +3687,7 @@ def pad_layer(input,
                          ]
 
        pad_c=[1,1], pad_h=[0,0], pad_w=[0,0]
+
        output(2,4,2,3) = [
                            [ [[0,0,0], [0,0,0]],
                              [[1,2,3], [3,4,5]],
@@ -4191,13 +4192,7 @@ def block_expand_layer(input,
 
 @wrap_name_default()
 @layer_support()
-def maxout_layer(input,
-                 groups,
-                 num_channels=None,
-                 size_x=None,
-                 size_y=None,
-                 name=None,
-                 layer_attr=None):
+def maxout_layer(input, groups, num_channels=None, name=None, layer_attr=None):
     """
     A layer to do max out on conv layer output.
       - Input: output of a conv layer.