[script] remove the get_parameter function from the train_cnn script

bob/learn/pytorch/scripts/train_cnn.py

@@ -52,48 +52,6 @@ from bob.learn.pytorch.utils import get_parameter
 
 version = pkg_resources.require('bob.learn.pytorch')[0].version
 
-def get_parameter(args, configuration, keyword, default):
-  """ Get the right value for a parameter
-
-  The parameters are either defined in a separate configuration file
-  or given directly via command-line. Note that the command-line
-  has priority over the configuration file.
-
-  As a convention, parameters made with more than one word (i.e. batch size)
-  are provided with an underscore in the configuration file, and with an
-  hyphen in the command-line:
-
-    - configuration:  batch_size=64
-    - command line:   --batch-size=64
-
-  Parameters
-  ----------
-  args: dictionary
-    The arguments as parsed from the command line.
-  configuration: object
-    The arguments given by the configuration file.
-  keyword: string
-    the keyword for the parameter to process (in the "configuration" style)
-  default: 
-    The default value of the parameter
-
-  Returns
-  -------
-  arg:
-    The right value for the given keyword argument
-
-  """
- 
-  args_kw = '--' + keyword.replace('_', '-')
-  _type = type(default)
-  arg = _type(args[args_kw])
-  if hasattr(configuration, keyword):
-    arg = getattr(configuration, keyword)
-  if _type(args[args_kw]) is not default:
-    arg = _type(args[args_kw])
-  return arg
-
-
 def main(user_input=None):
   
   # Parse the command-line arguments