a little updates

features/roles/common/src/commonMain/kotlin/dev/inmo/postssystem/features/roles/common/Role.kt

@@ -7,11 +7,7 @@ import kotlinx.serialization.encoding.*
 import kotlinx.serialization.json.*
 
 @Serializable(RoleSerializer::class)
-interface Role {
-    companion object {
-        fun serializer() = RoleSerializer
-    }
-}
+interface Role
 
 @Serializable
 data class UnknownRole(val originalJson: JsonElement) : Role

features/roles/manager/common/src/commonMain/kotlin/dev/inmo/postssystem/features/roles/manager/common/RolesManagerRole.kt

@@ -8,11 +8,7 @@ import kotlinx.serialization.Serializable
 private val justForLoading = RolesManagerRoleSerializer
 
 @Serializable(RolesManagerRoleSerializer::class)
-interface RolesManagerRole : Role {
-    companion object {
-        fun serializer() = RolesManagerRoleSerializer
-    }
-}
+interface RolesManagerRole : Role
 
 @Serializable
 object GeneralRolesManagerRole : RolesManagerRole {