From 342098e460f88ddc5357d716542c0c7bef90c56b Mon Sep 17 00:00:00 2001
From: Bradley Lowekamp <blowekamp@mail.nih.gov>
Date: Thu, 30 Jul 2020 16:12:58 -0400
Subject: [PATCH] BUG: Remove no output warning in ImageSink filters

Filters derived from the ImageSink class frequently do not have a
primary output. This warning was emitted erroneously during the
PrintSelf method.

This issue was reported in SimpleITK/SimpleITK#1141.
---
 Modules/Core/Common/src/itkProcessObject.cxx | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Modules/Core/Common/src/itkProcessObject.cxx b/Modules/Core/Common/src/itkProcessObject.cxx
index 7cbe6338d20..0644d554182 100644
--- a/Modules/Core/Common/src/itkProcessObject.cxx
+++ b/Modules/Core/Common/src/itkProcessObject.cxx
@@ -1181,7 +1181,6 @@ ProcessObject ::GetReleaseDataFlag() const
   {
     return this->GetPrimaryOutput()->GetReleaseDataFlag();
   }
-  itkWarningMacro(<< "Output doesn't exist!");
   return false;
 }