Delete an assortment of unneeded paint invalidation code.

sky/engine/core/rendering/RenderBlock.h

Index: sky/engine/core/rendering/RenderBlock.h
diff --git a/sky/engine/core/rendering/RenderBlock.h b/sky/engine/core/rendering/RenderBlock.h
index 24a76d2a6168a5e65ea0f74804cbdf15d5dc079b..0218cd2d5d4562b7b28126421e1b7c0ad3b62a1c 100644
--- a/sky/engine/core/rendering/RenderBlock.h
+++ b/sky/engine/core/rendering/RenderBlock.h
@@ -204,6 +204,8 @@ public:
     bool recalcChildOverflowAfterStyleChange();
     bool recalcOverflowAfterStyleChange();
 
+    virtual void invalidateTreeIfNeeded(const PaintInvalidationState&) override;
+
 protected:
     virtual void willBeDestroyed() override;
 
@@ -269,8 +271,6 @@ protected:
 
     virtual bool isInlineBlock() const override final { return isInline() && isReplaced(); }
 
-    virtual void invalidateTreeIfNeeded(const PaintInvalidationState&) override;
-
     virtual void paintContents(PaintInfo&, const LayoutPoint&);
 
     virtual bool hitTestContents(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction);