Removed leftovers from chat token system.

database/2022_01_13_005600_nuke_chat_tokens_table.php

@@ -0,0 +1,26 @@
+<?php
+namespace Misuzu\DatabaseMigrations\NukeChatTokensTable;
+
+use PDO;
+
+function migrate_up(PDO $conn): void {
+    $conn->exec("DROP TABLE `msz_user_chat_tokens`");
+}
+
+function migrate_down(PDO $conn): void {
+    $conn->exec("
+        CREATE TABLE `msz_user_chat_tokens` (
+            `user_id`       INT(10) UNSIGNED NOT NULL,
+            `token_string`  CHAR(64) NOT NULL,
+            `token_created` TIMESTAMP NOT NULL DEFAULT current_timestamp(),
+            UNIQUE INDEX `user_chat_token_string_unique` (`token_string`),
+                   INDEX `user_chat_token_user_foreign`  (`user_id`),
+                   INDEX `user_chat_token_created_key`   (`token_created`),
+            CONSTRAINT `user_chat_token_user_foreign`
+                FOREIGN KEY (`user_id`)
+                REFERENCES `msz_users` (`user_id`)
+                ON UPDATE CASCADE
+                ON DELETE CASCADE
+        ) COLLATE='utf8mb4_bin' ENGINE=InnoDB;
+    ");
+}