[experiment] Fix sphinx warnings

beat/core/experiment.py

@@ -153,13 +153,6 @@ class Experiment(object):
 
     Attributes:
 
-      label (str): The full, valid label of this experiment
-
-      description (str): The short description string, loaded from the JSON
-        file if one was set.
-
-      documentation (str): The full-length docstring for this object.
-
       storage (object): A simple object that provides information about file
         paths for this toolchain
 
@@ -1063,7 +1056,7 @@ class Experiment(object):
 
     @property
     def label(self):
-        """Returns the label of this experiment"""
+        """Label of this experiment"""
 
         return self._label or "__unlabelled_experiment__"
 
@@ -1076,7 +1069,7 @@ class Experiment(object):
 
     @property
     def schema_version(self):
-        """Returns the schema version"""
+        """Schema version"""
 
         return self.data.get("schema_version", 1)