Cleanup more @return annotations

Author: nicolas-grekas

CacheWarmer/RouterCacheWarmer.php

@@ -52,8 +52,6 @@ public function warmUp(string $cacheDir)
 
     /**
      * Checks whether this warmer is optional or not.
-     *
-     * @return bool always true
      */
     public function isOptional(): bool
     {

DependencyInjection/Configuration.php

@@ -60,7 +60,7 @@ public function __construct(bool $debug)
     /**
      * Generates the configuration tree builder.
      *
-     * @return TreeBuilder The tree builder
+     * @return TreeBuilder
      */
     public function getConfigTreeBuilder()
     {

HttpCache/HttpCache.php

@@ -76,7 +76,7 @@ protected function forward(Request $request, bool $catch = false, Response $entr
     /**
      * Returns an array of options to customize the Cache configuration.
      *
-     * @return array An array of options
+     * @return array
      */
     protected function getOptions()
     {

Test/KernelTestCase.php

@@ -52,7 +52,7 @@ protected function tearDown(): void
     }
 
     /**
-     * @return string The Kernel class name
+     * @return string
      *
      * @throws \RuntimeException
      * @throws \LogicException