Remove legacy Twig_ namespace support

Author: GromNaN

DataCollector/TwigDataCollector.php

@@ -131,7 +131,7 @@ public function getHtmlCallGraph(): Markup
 
     public function getProfile(): Profile
     {
-        return $this->profile ??= unserialize($this->data['profile'], ['allowed_classes' => ['Twig_Profiler_Profile', Profile::class]]);
+        return $this->profile ??= unserialize($this->data['profile'], ['allowed_classes' => [Profile::class]]);
     }
 
     private function getComputedData(string $index): mixed

Tests/Node/TransNodeTest.php

@@ -50,10 +50,6 @@ protected function getVariableGetterWithoutStrictCheck($name)
 
     protected function getVariableGetterWithStrictCheck($name)
     {
-        if (Environment::MAJOR_VERSION >= 2) {
-            return sprintf('(isset($context["%1$s"]) || array_key_exists("%1$s", $context) ? $context["%1$s"] : (function () { throw new %2$s(\'Variable "%1$s" does not exist.\', 0, $this->source); })())', $name, Environment::VERSION_ID >= 20700 ? 'RuntimeError' : 'Twig_Error_Runtime');
-        }
-
-        return sprintf('($context["%s"] ?? $this->getContext($context, "%1$s"))', $name);
+        return sprintf('(isset($context["%1$s"]) || array_key_exists("%1$s", $context) ? $context["%1$s"] : (function () { throw new RuntimeError(\'Variable "%1$s" does not exist.\', 0, $this->source); })())', $name);
     }
 }