remove the refresh_token table

db/mycroft/account_schema/tables/refresh_token.sql

@@ -1,7 +0,0 @@
-CREATE TABLE account.refresh_token (
-    id                  uuid        PRIMARY KEY DEFAULT gen_random_uuid(),
-    account_id          uuid        NOT NULL REFERENCES account.account ON DELETE CASCADE,
-    refresh_token       text,
-    insert_ts           TIMESTAMP   NOT NULL DEFAULT CURRENT_TIMESTAMP,
-    UNIQUE (account_id, refresh_token)
-);