minor #39246 [HttpFoundation] Throws cleanup (kick-the-bucket)

This PR was merged into the 4.4 branch.

Discussion
----------

[HttpFoundation] Throws cleanup

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       |
| License       | MIT
| Doc PR        |

The actual throw statements have been removed years ago, but the annotations stayed.
Such annotations fool static analysis tools to trigger false positives for unhandled exceptions.

Commits
-------

8b9b62048c Remove unused @throws tags and handling of never thrown exceptions

Author: nicolas-grekas

JsonResponse.php

@@ -133,8 +133,6 @@ public function setCallback($callback = null)
      * @param string $json
      *
      * @return $this
-     *
-     * @throws \InvalidArgumentException
      */
     public function setJson($json)
     {

Request.php

@@ -504,15 +504,7 @@ public function __clone()
      */
     public function __toString()
     {
-        try {
-            $content = $this->getContent();
-        } catch (\LogicException $e) {
-            if (\PHP_VERSION_ID >= 70400) {
-                throw $e;
-            }
-
-            return trigger_error($e, \E_USER_ERROR);
-        }
+        $content = $this->getContent();
 
         $cookieHeader = '';
         $cookies = [];
@@ -577,8 +569,6 @@ public function overrideGlobals()
      *
      * @param array $proxies          A list of trusted proxies, the string 'REMOTE_ADDR' will be replaced with $_SERVER['REMOTE_ADDR']
      * @param int   $trustedHeaderSet A bit field of Request::HEADER_*, to set which headers to trust from your proxies
-     *
-     * @throws \InvalidArgumentException When $trustedHeaderSet is invalid
      */
     public static function setTrustedProxies(array $proxies, int $trustedHeaderSet)
     {
@@ -1527,8 +1517,6 @@ public function getProtocolVersion()
      * @param bool $asResource If true, a resource will be returned
      *
      * @return string|resource The request body content or a resource to read the body stream
-     *
-     * @throws \LogicException
      */
     public function getContent($asResource = false)
     {