core/modules/big_pipe/src/Render/BigPipe.php | 2 --
 1 file changed, 2 deletions(-)

diff --git a/core/modules/big_pipe/src/Render/BigPipe.php b/core/modules/big_pipe/src/Render/BigPipe.php
index 96335e6..9860bfd 100644
--- a/core/modules/big_pipe/src/Render/BigPipe.php
+++ b/core/modules/big_pipe/src/Render/BigPipe.php
@@ -496,8 +496,6 @@ protected function sendPlaceholders(array $placeholders, array $placeholder_orde
     print static::STOP_SIGNAL;
     print "\n";
     flush();
-
-    return $sent_output;
   }
 
   /**