Minz request avoid custom methods (#4020)

Take advantage of PHP7+ null-coalescing operator `??` to make code more standard, shorter, and faster instead of custom function with no extra functionality.

Allows code to be better tested and fix two PHPstan errors:

```
 ------ -----------------------------------------
  Line   app/Controllers/configureController.php
 ------ -----------------------------------------
  410    Cannot unset offset 'rid' on string.
 ------ -----------------------------------------

 ------ ------------------------------------
  Line   lib/Minz/FrontController.php
 ------ ------------------------------------
  70     Cannot unset offset 'c' on string.
  71     Cannot unset offset 'a' on string.
 ------ ------------------------------------
```

https://github.com/FreshRSS/FreshRSS/issues/4016

1 files changed, 4 insertions, 10 deletions

diff --git a/lib/Minz/FrontController.php b/lib/Minz/FrontController.php
index 33edf37e3..9be39a0d1 100644
--- a/lib/Minz/FrontController.php
+++ b/lib/Minz/FrontController.php
@@ -38,7 +38,7 @@ class Minz_FrontController {
 			$url = $this->buildUrl();
 			$url['params'] = array_merge (
 				$url['params'],
-				Minz_Request::fetchPOST ()
+				$_POST
 			);
 			Minz_Request::forward ($url);
 		} catch (Minz_Exception $e) {
@@ -56,15 +56,9 @@ class Minz_FrontController {
 	private function buildUrl() {
 		$url = array();
 
-		$url['c'] = Minz_Request::fetchGET(
-			'c',
-			Minz_Request::defaultControllerName()
-		);
-		$url['a'] = Minz_Request::fetchGET(
-			'a',
-			Minz_Request::defaultActionName()
-		);
-		$url['params'] = Minz_Request::fetchGET();
+		$url['c'] = $_GET['c'] ?? Minz_Request::defaultControllerName();
+		$url['a'] = $_GET['a'] ?? Minz_Request::defaultActionName();
+		$url['params'] = $_GET;
 
 		// post-traitement
 		unset($url['params']['c']);