Avoid initWithOutput override entirely in AB builds to prevent compilation warning

Reconstruction/Jet/JetRec/JetRec/JetCopier.h

@@ -41,9 +41,13 @@ class JetCopier
 
     // Called in parent initialize()
     virtual StatusCode initialize() override;
+
+#ifndef XAOD_ANALYSIS
     // Needed to initialise the ShallowCopyDecorDeps object, which propagates
     // decorations on the original into the copy in StoreGate.
+    // Override interface implementation in Athena only
     virtual StatusCode initWithOutput(const SG::WriteHandleKey<xAOD::JetContainer>& outputJets) override;
+#endif
 
     // Called during execution
     virtual StatusCode getAndRecordJets(SG::WriteHandle<xAOD::JetContainer>& jetHandle) const override;

Reconstruction/Jet/JetRec/Root/JetCopier.cxx

@@ -36,14 +36,12 @@ StatusCode JetCopier::initialize() {
 }
 
 
+#ifndef XAOD_ANALYSIS
 // Setup helper to propagate decorations from original to copy
 StatusCode JetCopier::initWithOutput(const SG::WriteHandleKey<xAOD::JetContainer>& outputJets) {
-#ifndef XAOD_ANALYSIS
   return m_decorDeps.initialize(m_inputJets, outputJets) ;
-#else
-  return StatusCode::SUCCESS;
-#endif
 }
+#endif
 
 
 StatusCode JetCopier::getAndRecordJets(SG::WriteHandle<xAOD::JetContainer>& jetHandle) const {