minor #17480 Static code analysis (Koc)

This PR was merged into the 2.3 branch.

Discussion
----------

Static code analysis

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Things that done:
* fix case in method calls
* removed unused imports
* use shorter concat where it possible
* optimize some css
* removed duplicated array keys
* removed redurant return statements
* removed one-time variables
* do not pass arguments that not used in functions

Commits
-------

8db691a Static code analysis

Author: fabpot

HttpCache/HttpCache.php

@@ -255,7 +255,7 @@ protected function invalidate(Request $request, $catch = false)
         // invalidate only when the response is successful
         if ($response->isSuccessful() || $response->isRedirect()) {
             try {
-                $this->store->invalidate($request, $catch);
+                $this->store->invalidate($request);
 
                 // As per the RFC, invalidate Location and Content-Location URLs if present
                 foreach (array('Location', 'Content-Location') as $header) {
@@ -481,7 +481,7 @@ protected function forward(Request $request, $catch = false, Response $entry = n
         $this->processResponseBody($request, $response);
 
         if ($this->isPrivateRequest($request) && !$response->headers->hasCacheControlDirective('public')) {
-            $response->setPrivate(true);
+            $response->setPrivate();
         } elseif ($this->options['default_ttl'] > 0 && null === $response->getTtl() && !$response->headers->getCacheControlDirective('must-revalidate')) {
             $response->setTtl($this->options['default_ttl']);
         }

Profiler/SqliteProfilerStorage.php

@@ -77,7 +77,7 @@ protected function fetch($db, $query, array $args = array())
         $return = array();
 
         if ($db instanceof \SQLite3) {
-            $stmt = $this->prepareStatement($db, $query, true);
+            $stmt = $this->prepareStatement($db, $query);
             foreach ($args as $arg => $val) {
                 $stmt->bindValue($arg, $val, is_int($val) ? \SQLITE3_INTEGER : \SQLITE3_TEXT);
             }