fix docstring of sfg.method

src/pystencilssfg/composer/class_composer.py

@@ -251,9 +251,6 @@ class SfgClassComposer(SfgComposerMixIn):
 
         Args:
             name: The method name
-            returns: The method's return type
-            inline: Whether or not the method should be defined in-line.
-            const: Whether or not the method is const-qualified.
         """
 
         return SfgMethodSequencer(self._cursor, name)