Fixed redundant condition

Co-authored-by: Andrew Longosz <[email protected]>

Author: Steveb-p

src/lib/Server/Output/ValueObjectVisitor/RestContent.php

@@ -150,12 +150,7 @@ public function visit(Visitor $visitor, Generator $generator, $data)
 
         // Published date will not exist if we're visiting the content draft
         if ($contentInfo->publishedDate !== null) {
-            $generator->valueElement(
-                'publishedDate',
-                ($contentInfo->publishedDate !== null
-                    ? $contentInfo->publishedDate->format('c')
-                    : null)
-            );
+            $generator->valueElement('publishedDate', $contentInfo->publishedDate->format('c'));
         }
 
         $generator->valueElement(