Allow frameworks parameter to be used in ios_application

[codeman9]

• Before this change, using the "frameworks" parameter in ios_application resulted in an error: "Error in ios_application: rule(...) got multiple values for parameter 'frameworks'" because we are passing "application_kwargs" into the rules_apple rule which has the "frameworks" parameter copied over from "kwargs". Making this change actually pops the parameter from the correct dictionary which will remove the duplication error.