Pass changes WIP: small optimization

Gems/Atom/RPI/Code/Source/RPI.Public/RenderPipeline.cpp

@@ -109,7 +109,6 @@ namespace AZ
             pipeline->m_rootPass->SetRenderPipeline(pipeline);
 
             // Manually create the pipeline so we can gather the view tags from it's passes
-            pipeline->m_rootPass->Reset();
             pipeline->m_rootPass->Build();
             pipeline->m_rootPass->Initialize();
             pipeline->m_rootPass->OnInitializationFinished();

Gems/Atom/RPI/Code/Source/RPI.Public/Scene.cpp

@@ -291,7 +291,6 @@ namespace AZ
             pipeline->OnAddedToScene(this);
 
             // Force to update the lookup table since adding render pipeline would effect any pipeline states created before pass system tick
-            AZ::RPI::PassSystemInterface::Get()->ProcessQueuedChanges();
             RebuildPipelineStatesLookup();
 
             AZ_Assert(!m_id.IsNull(), "RPI::Scene needs to have a valid uuid.");