Delete a bunch of code

This removes the duality of DisplayList, removing a small amount of
overhead

Test: buids & hwuiunit passes

Change-Id: I8bb3a20e9ead1caec4b4a8a3e9f2c08f717a7096
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 0caf59b..4d1e1e8 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -66,10 +66,7 @@
 
 bool RenderProxy::loadSystemProperties() {
     return mRenderThread.queue().runSync([this]() -> bool {
-        bool needsRedraw = false;
-        if (Caches::hasInstance()) {
-            needsRedraw = Properties::load();
-        }
+        bool needsRedraw = Properties::load();
         if (mContext->profiler().consumeProperties()) {
             needsRedraw = true;
         }