remove membership metadata

pallets/authority-members/src/benchmarking.rs

pallets/authority-members/src/lib.rs

pallets/authority-members/src/mock.rs

pallets/distance/src/mock.rs

pallets/duniter-wot/src/lib.rs

pallets/duniter-wot/src/mock.rs

pallets/duniter-wot/src/tests.rs

pallets/membership/src/benchmarking.rs

pallets/membership/src/lib.rs

pallets/membership/src/mock.rs

pallets/membership/src/tests.rs

primitives/membership/src/lib.rs

primitives/membership/src/traits.rs

resources/metadata.scale

runtime/common/src/entities.rs

runtime/common/src/handlers.rs

runtime/common/src/pallets_config.rs

runtime/gdev/tests/fixme_tests.rs

runtime/gdev/tests/integration_tests.rs