Remove addon table from DB structure

- It isn't used anymore in favor of a Config key

database.sql

@@ -340,22 +340,6 @@ CREATE TABLE IF NOT EXISTS `account-user` (
 	FOREIGN KEY (`uid`) REFERENCES `user` (`uid`) ON UPDATE RESTRICT ON DELETE CASCADE
 ) DEFAULT COLLATE utf8mb4_general_ci COMMENT='Remote and local accounts';
 
---
--- TABLE addon
---
-CREATE TABLE IF NOT EXISTS `addon` (
-	`id` int unsigned NOT NULL auto_increment COMMENT '',
-	`name` varchar(50) NOT NULL DEFAULT '' COMMENT 'addon base (file)name',
-	`version` varchar(50) NOT NULL DEFAULT '' COMMENT 'currently unused',
-	`installed` boolean NOT NULL DEFAULT '0' COMMENT 'currently always 1',
-	`hidden` boolean NOT NULL DEFAULT '0' COMMENT 'currently unused',
-	`timestamp` int unsigned NOT NULL DEFAULT 0 COMMENT 'file timestamp to check for reloads',
-	`plugin_admin` boolean NOT NULL DEFAULT '0' COMMENT '1 = has admin config, 0 = has no admin config',
-	 PRIMARY KEY(`id`),
-	 INDEX `installed_name` (`installed`,`name`),
-	 UNIQUE INDEX `name` (`name`)
-) DEFAULT COLLATE utf8mb4_general_ci COMMENT='registered addons';
-
 --
 -- TABLE apcontact
 --

doc/database/db_addon.md

@@ -1,29 +0,0 @@
-Table addon
-===========
-
-registered addons
-
-Fields
-------
-
-| Field        | Description                                   | Type         | Null | Key | Default | Extra          |
-| ------------ | --------------------------------------------- | ------------ | ---- | --- | ------- | -------------- |
-| id           |                                               | int unsigned | NO   | PRI | NULL    | auto_increment |
-| name         | addon base (file)name                         | varchar(50)  | NO   |     |         |                |
-| version      | currently unused                              | varchar(50)  | NO   |     |         |                |
-| installed    | currently always 1                            | boolean      | NO   |     | 0       |                |
-| hidden       | currently unused                              | boolean      | NO   |     | 0       |                |
-| timestamp    | file timestamp to check for reloads           | int unsigned | NO   |     | 0       |                |
-| plugin_admin | 1 = has admin config, 0 = has no admin config | boolean      | NO   |     | 0       |                |
-
-Indexes
-------------
-
-| Name           | Fields          |
-| -------------- | --------------- |
-| PRIMARY        | id              |
-| installed_name | installed, name |
-| name           | UNIQUE, name    |
-
-
-Return to [database documentation](help/database)

static/dbstructure.config.php

@@ -399,23 +399,6 @@ return [
 			"uid_uri-id" => ["uid", "uri-id"],
 		]
 	],
-	"addon" => [
-		"comment" => "registered addons",
-		"fields" => [
-			"id" => ["type" => "int unsigned", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
-			"name" => ["type" => "varchar(50)", "not null" => "1", "default" => "", "comment" => "addon base (file)name"],
-			"version" => ["type" => "varchar(50)", "not null" => "1", "default" => "", "comment" => "currently unused"],
-			"installed" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "currently always 1"],
-			"hidden" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "currently unused"],
-			"timestamp" => ["type" => "int unsigned", "not null" => "1", "default" => "0", "comment" => "file timestamp to check for reloads"],
-			"plugin_admin" => ["type" => "boolean", "not null" => "1", "default" => "0", "comment" => "1 = has admin config, 0 = has no admin config"],
-		],
-		"indexes" => [
-			"PRIMARY" => ["id"],
-			"installed_name" => ["installed", "name"],
-			"name" => ["UNIQUE", "name"],
-		]
-	],
 	"apcontact" => [
 		"comment" => "ActivityPub compatible contacts - used in the ActivityPub implementation",
 		"fields" => [