Revert "feat: knowledge admin role" (#6018)

api/services/account_service.py

@@ -369,28 +369,6 @@ class TenantService:
 
         return updated_accounts
 
-    @staticmethod
-    def get_dataset_operator_members(tenant: Tenant) -> list[Account]:
-        """Get dataset admin members"""
-        query = (
-            db.session.query(Account, TenantAccountJoin.role)
-            .select_from(Account)
-            .join(
-                TenantAccountJoin, Account.id == TenantAccountJoin.account_id
-            )
-            .filter(TenantAccountJoin.tenant_id == tenant.id)
-            .filter(TenantAccountJoin.role == 'dataset_operator')
-        )
-
-        # Initialize an empty list to store the updated accounts
-        updated_accounts = []
-
-        for account, role in query:
-            account.role = role
-            updated_accounts.append(account)
-
-        return updated_accounts
-
     @staticmethod
     def has_roles(tenant: Tenant, roles: list[TenantAccountJoinRole]) -> bool:
         """Check if user has any of the given roles for a tenant"""