Remove some childTypeAllowed implementations

Source/core/dom/shadow/ShadowRoot.cpp

Index: Source/core/dom/shadow/ShadowRoot.cpp
diff --git a/Source/core/dom/shadow/ShadowRoot.cpp b/Source/core/dom/shadow/ShadowRoot.cpp
index bf2c4dc3f98e1a7906fe1dbf0b4950a794e5e8a9..df04baff7578eb330d42a14c29d9d396e889338a 100644
--- a/Source/core/dom/shadow/ShadowRoot.cpp
+++ b/Source/core/dom/shadow/ShadowRoot.cpp
@@ -148,20 +148,6 @@ void ShadowRoot::setInnerHTML(const String& markup, ExceptionState& exceptionSta
         replaceChildrenWithFragment(this, fragment.release(), exceptionState);
 }
 
-bool ShadowRoot::childTypeAllowed(NodeType type) const
-{
-    switch (type) {
-    case ELEMENT_NODE:
-    case PROCESSING_INSTRUCTION_NODE:
-    case COMMENT_NODE:
-    case TEXT_NODE:
-    case CDATA_SECTION_NODE:
-        return true;
-    default:
-        return false;
-    }
-}
-
 void ShadowRoot::recalcStyle(StyleRecalcChange change)
 {
     // ShadowRoot doesn't support custom callbacks.