bug #25337 Remove Exclusive Lock That Breaks NFS Caching (brianfreytag)

This PR was merged into the 3.4 branch.

Discussion
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Remove Exclusive Lock That Breaks NFS Caching

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #25336
| License       | MIT
| Doc PR        | n/a

#24960 introduced an issue with NFS mounts that do not support exclusive locks. This reverts that change.

FYI @kalessil

Commits
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a7ac100 Remove LOCK_EX That Breaks Cache Usage on NFS

src/Symfony/Component/HttpKernel/Kernel.php

@@ -423,7 +423,7 @@ public function setClassCache(array $classes)
      */
     public function setAnnotatedClassCache(array $annotatedClasses)
     {
-        file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)), LOCK_EX);
+        file_put_contents(($this->warmupDir ?: $this->getCacheDir()).'/annotations.map', sprintf('<?php return %s;', var_export($annotatedClasses, true)));
     }
 
     /**