servo: Merge #7236 - Fix dictionary member conversion failure (fixes #7231) (from nox:dictionary-failure-code); r=Ms2ger

Source-Repo: https://github.com/servo/servo
Source-Revision: a2978f2add3a9c828b7bb701cb2d04318e5c0b45

UltraBlame original commit: 63d2ce82468ff550d23384dfeb36f2601d585dac

Author: marco-c

servo/components/script/dom/bindings/codegen/CodegenRust.py

@@ -4696,7 +4696,6 @@ def __init__(self, dictionary, descriptorProvider):
                                          descriptorProvider,
                                          isMember="Dictionary",
                                          defaultValue=member.defaultValue,
-                                         failureCode="return Err(());",
                                          exceptionCode="return Err(());"))
             for member in dictionary.members]