Remove superfluous code

Author: sebastianbergmann

src/Report/Xml/Totals.php

@@ -11,15 +11,13 @@
 
 use function sprintf;
 use DOMElement;
-use DOMNode;
 use SebastianBergmann\CodeCoverage\Util\Percentage;
 
 /**
  * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
  */
 final readonly class Totals
 {
-    private DOMNode $container;
     private DOMElement $linesNode;
     private DOMElement $methodsNode;
     private DOMElement $functionsNode;
@@ -28,8 +26,7 @@
 
     public function __construct(DOMElement $container)
     {
-        $this->container = $container;
-        $dom             = $container->ownerDocument;
+        $dom = $container->ownerDocument;
 
         $this->linesNode = $dom->createElementNS(
             'https://schema.phpunit.de/coverage/1.0',
@@ -63,11 +60,6 @@ public function __construct(DOMElement $container)
         $container->appendChild($this->traitsNode);
     }
 
-    public function container(): DOMNode
-    {
-        return $this->container;
-    }
-
     public function setNumLines(int $loc, int $cloc, int $ncloc, int $executable, int $executed): void
     {
         $this->linesNode->setAttribute('total', (string) $loc);