Remove IDBNotFoundError ExceptionCode

Source/core/editing/markup.cpp

Index: Source/core/editing/markup.cpp
diff --git a/Source/core/editing/markup.cpp b/Source/core/editing/markup.cpp
index 8d38db1fc4b430476a4a1ae0aef6a93ab5e16705..82b6c9c54c1e23533ec4e6d8c2489082895c2f3c 100644
--- a/Source/core/editing/markup.cpp
+++ b/Source/core/editing/markup.cpp
@@ -682,7 +682,7 @@ static void trimFragment(DocumentFragment* fragment, Node* nodeBeforeContext, No
         }
         next = NodeTraversal::nextSkippingChildren(node.get());
         ASSERT(!node->contains(nodeAfterContext));
-        node->parentNode()->removeChild(node.get(), ASSERT_NO_EXCEPTION);
+        node->parentNode()->removeChild(node.get());
         if (nodeBeforeContext == node)
             break;
     }
@@ -690,7 +690,7 @@ static void trimFragment(DocumentFragment* fragment, Node* nodeBeforeContext, No
     ASSERT(nodeAfterContext->parentNode());
     for (RefPtr<Node> node = nodeAfterContext; node; node = next) {
         next = NodeTraversal::nextSkippingChildren(node.get());
-        node->parentNode()->removeChild(node.get(), ASSERT_NO_EXCEPTION);
+        node->parentNode()->removeChild(node.get());
     }
 }
 
@@ -990,10 +990,10 @@ static inline void removeElementPreservingChildren(PassRefPtr<DocumentFragment>
     RefPtr<Node> nextChild;
     for (RefPtr<Node> child = element->firstChild(); child; child = nextChild) {
         nextChild = child->nextSibling();
-        element->removeChild(child.get(), ASSERT_NO_EXCEPTION);
+        element->removeChild(child.get());
         fragment->insertBefore(child, element, ASSERT_NO_EXCEPTION);
     }
-    fragment->removeChild(element, ASSERT_NO_EXCEPTION);
+    fragment->removeChild(element);
 }
 
 PassRefPtr<DocumentFragment> createContextualFragment(const String& markup, HTMLElement* element, ParserContentPolicy parserContentPolicy, ExceptionCode& ec)