diff --git a/pallets/authority-members/src/lib.rs b/pallets/authority-members/src/lib.rs
index 6858083e14ce180092307546059eb318b0fd36d3..8aea8ef95b88b3f654c1da9e1a243bac307fd3dd 100644
--- a/pallets/authority-members/src/lib.rs
+++ b/pallets/authority-members/src/lib.rs
@@ -123,12 +123,6 @@ pub mod pallet {
 
     // STORAGE //
 
-    /// maps member id to account id
-    #[pallet::storage]
-    #[pallet::getter(fn account_id_of)]
-    pub type AccountIdOf<T: Config> =
-        StorageMap<_, Twox64Concat, T::MemberId, T::AccountId, OptionQuery>;
-
     /// count the number of authorities
     #[pallet::storage]
     #[pallet::getter(fn authorities_counter)]
diff --git a/resources/metadata.scale b/resources/metadata.scale
index 8f99f0d369fcf36e6cd824fc45bf28a951730eff..fb91b61a49c3a512a3c28298a25c7e83b34b9e69 100644
Binary files a/resources/metadata.scale and b/resources/metadata.scale differ