Remove EditingAppleTabSpan class handling

third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.cpp

Index: third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.cpp b/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.cpp
index a0a4b7a701ca3b86eb5dacb88781145a56cc566f..a0dcc9c25a2807d4ddccb06b5ce45677b79c1632 100644
--- a/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.cpp
@@ -997,11 +997,6 @@ static bool isInlineHTMLElementWithStyle(const Node* node) {
   // one of our internal classes.
   const HTMLElement* element = toHTMLElement(node);
   const AtomicString& classAttributeValue = element->getAttribute(classAttr);
-  if (classAttributeValue == AppleTabSpanClass) {
-    UseCounter::count(element->document(),
-                      UseCounter::EditingAppleTabSpanClass);
-    return true;
-  }
   if (classAttributeValue == AppleConvertedSpace) {
     UseCounter::count(element->document(),
                       UseCounter::EditingAppleConvertedSpace);