Remove redundant isInline function

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

Index: third_party/WebKit/Source/core/editing/commands/IndentOutdentCommand.cpp
diff --git a/third_party/WebKit/Source/core/editing/commands/IndentOutdentCommand.cpp b/third_party/WebKit/Source/core/editing/commands/IndentOutdentCommand.cpp
index e1926c6b1b96e187fcc35a28f286d96ea38eb1e3..749fa9ee041b6ddb056b637183ba0c63ab509cf3 100644
--- a/third_party/WebKit/Source/core/editing/commands/IndentOutdentCommand.cpp
+++ b/third_party/WebKit/Source/core/editing/commands/IndentOutdentCommand.cpp
@@ -54,12 +54,6 @@ static bool isHTMLListOrBlockquoteElement(const Node* node)
     return isHTMLUListElement(element) || isHTMLOListElement(element) || element.hasTagName(blockquoteTag);
 }
 
-static bool isInline(const Node* node)
-{
-    return node && node->layoutObject() && node->layoutObject()->isInline();
-}
-
-
 IndentOutdentCommand::IndentOutdentCommand(Document& document, EIndentType typeOfAction)
     : ApplyBlockElementCommand(document, blockquoteTag, "margin: 0 0 0 40px; border: none; padding: 0px;")
     , m_typeOfAction(typeOfAction)