Fix Issue #62 Delete equipment_id reference to recipe table

db-upgrade-4-5.sql

@@ -48,6 +48,5 @@ CREATE TABLE IF NOT EXISTS `recipe` (
     `description` VARCHAR(150) NOT NULL,
     `intervention_id` INT(11) NOT NULL,
     PRIMARY KEY (`id`),
-    FOREIGN KEY (`intervention_id`) REFERENCES `intervention`(`id`),
-    FOREIGN KEY (`equipment_id`) REFERENCES `listing`(`id`)
+    FOREIGN KEY (`intervention_id`) REFERENCES `intervention`(`id`)
 ) ENGINE=MyISAM AUTO_INCREMENT=1 CHARSET=utf8;
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