refactor: rm unnecessary code for eureka · cosmos/ibc-rs@51f4c22

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/chain_id.rs#L326

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/chain_id.rs#L351

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/chain_id.rs#L374

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/client_id.rs#L109

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/client_type.rs#L73

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/client_type.rs#L84

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/identifiers/client_type.rs#L92

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/validate.rs#L287

failed to resolve: use of undeclared crate or module `std`

Run cargo test: ibc-eureka-core/ics24-host/types/src/validate.rs#L307

failed to resolve: use of undeclared crate or module `std`

Process completed with exit code 2.

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