Remove redunant code from RunPython operation

django/db/migrations/operations/special.py

@@ -128,26 +128,12 @@ class RunPython(Operation):
         # object, representing the versioned models as an app registry.
         # We could try to override the global cache, but then people will still
         # use direct imports, so we go with a documentation approach instead.
-        if callable(self.code):
         self.code(models=from_state.render(), schema_editor=schema_editor)
-        else:
-            context = {
-                "models": from_state.render(),
-                "schema_editor": schema_editor,
-            }
-            eval(self.code, context)
 
     def database_backwards(self, app_label, schema_editor, from_state, to_state):
         if self.reverse_code is None:
             raise NotImplementedError("You cannot reverse this operation")
-        elif callable(self.reverse_code):
         self.reverse_code(models=from_state.render(), schema_editor=schema_editor)
-        else:
-            context = {
-                "models": from_state.render(),
-                "schema_editor": schema_editor,
-            }
-            eval(self.reverse_code, context)
 
     def describe(self):
         return "Raw Python operation"