GraphQL-527: Category Tree Contains null Leaves

-- fix code style

Author: naydav

app/code/Magento/CatalogGraphQl/Model/Category/DepthCalculator.php

@@ -26,10 +26,7 @@ public function calculate(FieldNode $fieldNode) : int
         $depth = count($selections) ? 1 : 0;
         $childrenDepth = [0];
         foreach ($selections as $node) {
-            if (
-                $node->kind === 'InlineFragment'
-                || null !== $node->alias
-            ) {
+            if ($node->kind === 'InlineFragment' || null !== $node->alias) {
                 continue;
             }