Foreign keys in messages now delete when parent key is deleted

server-api/migrations/2020-07-06-022319_messages/up.sql

@@ -4,8 +4,6 @@ CREATE TABLE IF NOT EXISTS `messages`(
 	`time` BIGINT NOT NULL,
 	`content` VARCHAR(2048) NOT NULL,
 	`author_id` BIGINT UNSIGNED NOT NULL,
-	`channel_name` VARCHAR(255) NOT NULL,
 	PRIMARY KEY (`id`),
-	FOREIGN KEY (`author_id`) REFERENCES members(`id`),
-	FOREIGN KEY (`channel_name`) REFERENCES channels(`name`)
+	FOREIGN KEY (`author_id`) REFERENCES members(`id`) ON DELETE CASCADE
 );