Replace sheet change methods with styleResolverChanged.

sky/engine/core/dom/Document.cpp

Index: sky/engine/core/dom/Document.cpp
diff --git a/sky/engine/core/dom/Document.cpp b/sky/engine/core/dom/Document.cpp
index 7d9068547ac2af446c89391a6a4acf3c31a5ff35..a3965deea32ceda4e728b24f8a83424e8874abd6 100644
--- a/sky/engine/core/dom/Document.cpp
+++ b/sky/engine/core/dom/Document.cpp
@@ -2620,22 +2620,6 @@ DocumentLifecycleNotifier& Document::lifecycleNotifier()
     return static_cast<DocumentLifecycleNotifier&>(LifecycleContext<Document>::lifecycleNotifier());
 }
 
-void Document::removedStyleSheet(CSSStyleSheet* sheet)
-{
-    // If we're in document teardown, then we don't need this notification of our sheet's removal.
-    // styleResolverChanged() is needed even when the document is inactive so that
-    // imported docuements (which is inactive) notifies the change to the master document.
-    styleResolverChanged();
-}
-
-void Document::modifiedStyleSheet(CSSStyleSheet* sheet)
-{
-    // If we're in document teardown, then we don't need this notification of our sheet's removal.
-    // styleResolverChanged() is needed even when the document is inactive so that
-    // imported docuements (which is inactive) notifies the change to the master document.
-    styleResolverChanged();
-}
-
 Element* Document::activeElement() const
 {
     if (Element* element = treeScope().adjustedFocusedElement())