Delete document marker related invalidation code.

sky/engine/core/rendering/HitTestResult.cpp

Index: sky/engine/core/rendering/HitTestResult.cpp
diff --git a/sky/engine/core/rendering/HitTestResult.cpp b/sky/engine/core/rendering/HitTestResult.cpp
index 8e30a7f7008d430ffd07abbcb92129e99b4b2a16..8ef1b6b905d46adcff172e72bc4247c2dd39e1e0 100644
--- a/sky/engine/core/rendering/HitTestResult.cpp
+++ b/sky/engine/core/rendering/HitTestResult.cpp
@@ -157,23 +157,6 @@ bool HitTestResult::isSelected() const
     return false;
 }
 
-String HitTestResult::spellingToolTip(TextDirection& dir) const
-{
-    dir = LTR;
-    // Return the tool tip string associated with this point, if any. Only markers associated with bad grammar
-    // currently supply strings, but maybe someday markers associated with misspelled words will also.
-    if (!m_innerNonSharedNode)
-        return String();
-
-    DocumentMarker* marker = m_innerNonSharedNode->document().markers().markerContainingPoint(m_hitTestLocation.point(), DocumentMarker::Grammar);
-    if (!marker)
-        return String();
-
-    if (RenderObject* renderer = m_innerNonSharedNode->renderer())
-        dir = renderer->style()->direction();
-    return marker->description();
-}
-
 String HitTestResult::title(TextDirection& dir) const
 {
     dir = LTR;