cleanup SQL

Author: Thomas Risberg

jdbc/src/main/resources/sql/schema.sql

@@ -6,7 +6,7 @@ CREATE TABLE customer (
 CREATE UNIQUE INDEX ix_customer_email ON CUSTOMER (email_address ASC);
 CREATE TABLE address (
   id BIGINT IDENTITY PRIMARY KEY,
-  customer_id BIGINT CONSTRAINT address_customer_ref FOREIGN KEY REFERENCES customer (id),
+  customer_id BIGINT CONSTRAINT address_customer_ref REFERENCES customer (id),
   street VARCHAR(255),
   city VARCHAR(255),
   country VARCHAR(255));