remove unused method parameters

aircox/models/episode.py

@@ -222,7 +222,7 @@ class Diffusion(BaseRerun):
         self.episode = self.initial.episode
         self.program = self.episode.program
 
-    def save_initial(self, *args, **kwargs):
+    def save_initial(self):
         self.program = self.episode.program
 
     @property

aircox/models/program.py

@@ -198,7 +198,7 @@ class BaseRerun(models.Model):
         if self.is_rerun:
             self.save_rerun()
         else:
-            self.save_initial(*args, **kwargs)
+            self.save_initial()
         super().save(*args, **kwargs)
 
     def save_rerun(self):