Remove photo user id fallback from 2021

- Remove deprecated /photos/{nickname} fallback routes
- The contact id fallback is a lie, there's no replacement feature

src/Module/Photo.php

@@ -100,7 +100,6 @@ class Photo extends BaseApi
 				$id = $account['id'];
 			}
 
-			// Contact Id Fallback, to remove after version 2021.12
 			if (isset($this->parameters['contact_id'])) {
 				$id = intval($this->parameters['contact_id']);
 			}
@@ -115,12 +114,6 @@ class Photo extends BaseApi
 				$id = $user['uid'];
 			}
 
-			// User Id Fallback, to remove after version 2021.12
-			if (!empty($this->parameters['uid_ext'])) {
-				$id = intval(pathinfo($this->parameters['uid_ext'], PATHINFO_FILENAME));
-			}
-
-			// Please refactor this for the love of everything that's good
 			if (isset($this->parameters['id'])) {
 				$id = $this->parameters['id'];
 			}

static/routes.config.php

@@ -575,22 +575,13 @@ return [
 		'/{name}'                                                  => [Module\Photo::class, [R::GET]],
 		'/{type}/{id:\d+}'                                         => [Module\Photo::class, [R::GET]],
 		'/{type:contact|header}/{guid}'                            => [Module\Photo::class, [R::GET]],
-		// User Id Fallback, to remove after version 2021.12
-		'/{type}/{uid_ext:\d+\..*}'                                => [Module\Photo::class, [R::GET]],
 		'/{type}/{nickname_ext}'                                   => [Module\Photo::class, [R::GET]],
-		// Contact Id Fallback, to remove after version 2021.12
 		'/{type:contact|header}/{customsize:\d+}/{contact_id:\d+}' => [Module\Photo::class, [R::GET]],
 		'/{type:contact|header}/{customsize:\d+}/{guid}'           => [Module\Photo::class, [R::GET]],
 		'/{type}/{customsize:\d+}/{id:\d+}'                        => [Module\Photo::class, [R::GET]],
-		// User Id Fallback, to remove after version 2021.12
-		'/{type}/{customsize:\d+}/{uid_ext:\d+\..*}'               => [Module\Photo::class, [R::GET]],
 		'/{type}/{customsize:\d+}/{nickname_ext}'                  => [Module\Photo::class, [R::GET]],
 	],
 
-	// Kept for backwards-compatibility
-	// @TODO remove by version 2023.12
-	'/photos/{nickname}' => [Module\Profile\Photos::class, [R::GET]],
-
 	'/ping'              => [Module\Notifications\Ping::class, [R::GET]],
 
 	'/post' => [