remove table creation from init and only grant access

tools/walletextension/storage/database/001_init.sql

@@ -1,22 +1,7 @@
 /*
- This file is used to initialize the database by the github action manual-deploy-obscuro-gateway-database.yml
-
- todo (@ziga) : separate the database initialization from the database migration and delete this file and use migration files for each database type instead (sqlite, mariadb, edgelessdb)
+ This file is used to create database and create the necessary permissions to the user that will be used by the gateway.
  */
 
 CREATE DATABASE ogdb;
-
 USE ogdb;
-
 GRANT SELECT, INSERT, UPDATE, DELETE ON ogdb.* TO 'obscurouser';
-
-CREATE TABLE IF NOT EXISTS ogdb.users (
-    user_id varbinary(20) PRIMARY KEY,
-    private_key varbinary(32)
-    );
-CREATE TABLE IF NOT EXISTS ogdb.accounts (
-    user_id varbinary(20),
-    account_address varbinary(20),
-    signature varbinary(65),
-    FOREIGN KEY(user_id) REFERENCES users(user_id) ON DELETE CASCADE
-    );