Remove old pinch-zoom paths from Blink

Source/core/inspector/InspectorLayerTreeAgent.cpp

Index: Source/core/inspector/InspectorLayerTreeAgent.cpp
diff --git a/Source/core/inspector/InspectorLayerTreeAgent.cpp b/Source/core/inspector/InspectorLayerTreeAgent.cpp
index e4971e901d06de5e24d2a794d342fa28a181ec6f..849e04376f2c0666b616adbf13f5cb2ad7ed95a3 100644
--- a/Source/core/inspector/InspectorLayerTreeAgent.cpp
+++ b/Source/core/inspector/InspectorLayerTreeAgent.cpp
@@ -263,10 +263,7 @@ DeprecatedPaintLayerCompositor* InspectorLayerTreeAgent::deprecatedPaintLayerCom
 
 GraphicsLayer* InspectorLayerTreeAgent::rootGraphicsLayer()
 {
-    if (m_pageAgent->frameHost()->settings().pinchVirtualViewportEnabled())
-        return m_pageAgent->frameHost()->pinchViewport().rootGraphicsLayer();
-
-    return deprecatedPaintLayerCompositor()->rootGraphicsLayer();
+    return m_pageAgent->frameHost()->pinchViewport().rootGraphicsLayer();
 }
 
 static GraphicsLayer* findLayerById(GraphicsLayer* root, int layerId)