Drop AllowOnlyRestArgument from .rubocop.yml

This rule isn't relevant for Ruby 3.2: https://www.rubydoc.info/gems/rubocop/RuboCop/Cop/Style/ArgumentsForwarding

Drop AllowOnlyRestArgument from .rubocop.yml
2626ff46 · Stan Hu · Lin Jen-Shin · 049a7f0c · 2626ff46
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1035,7 +1035,6 @@ Cop/FeatureFlagUsage:

 Style/ArgumentsForwarding:
  Enabled: true
-  AllowOnlyRestArgument: false

 Search/NamespacedClass:
  Enabled: true