Remove unused calls of DI::app()

src/Module/Directory.php

@@ -27,7 +27,6 @@ class Directory extends BaseModule
 {
 	protected function content(array $request = []): string
 	{
-		$app = DI::app();
 		$config = DI::config();
 
 		if (($config->get('system', 'block_public') && !DI::userSession()->isAuthenticated()) ||

src/Module/Invite.php

@@ -30,7 +30,6 @@ class Invite extends BaseModule
 
 		self::checkFormSecurityTokenRedirectOnError('/', 'send_invite');
 
-		$app = DI::app();
 		$config = DI::config();
 
 		$max_invites = intval($config->get('system', 'max_invites'));
@@ -117,7 +116,6 @@ class Invite extends BaseModule
 			throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 		}
 
-		$app = DI::app();
 		$config = DI::config();
 
 		$inviteOnly = false;

src/Module/NoScrape.php

@@ -22,8 +22,6 @@ class NoScrape extends BaseModule
 {
 	protected function rawContent(array $request = [])
 	{
-		$a = DI::app();
-
 		if (isset($this->parameters['nick'])) {
 			// Get infos about a specific nick (public)
 			$which = $this->parameters['nick'];

src/Module/Profile/Schedule.php

@@ -42,8 +42,6 @@ class Schedule extends BaseProfile
 			throw new HTTPException\ForbiddenException(DI::l10n()->t('Permission denied.'));
 		}
 
-		$a = DI::app();
-
 		$o = self::getTabsHTML('schedule', true, DI::userSession()->getLocalUserNickname(), false);
 
 		$schedule = [];

src/Object/Post.php

@@ -1180,7 +1180,6 @@ class Post
 	 */
 	protected function checkWallToWall()
 	{
-		$a = DI::app();
 		$conv = $this->getThread();
 		$this->wall_to_wall = false;