Remove wtf/Functional.h

sky/engine/wtf/MainThread.cpp

Index: sky/engine/wtf/MainThread.cpp
diff --git a/sky/engine/wtf/MainThread.cpp b/sky/engine/wtf/MainThread.cpp
index 83a14aefb290aed59263a3af01fd5e6466dad94f..124e0ba36b578cfea2c12b1440af3f9f02679c30 100644
--- a/sky/engine/wtf/MainThread.cpp
+++ b/sky/engine/wtf/MainThread.cpp
@@ -32,7 +32,6 @@
 #include "wtf/MainThread.h"
 
 #include "wtf/Assertions.h"
-#include "wtf/Functional.h"
 #include "wtf/Threading.h"
 #include "wtf/text/AtomicString.h"
 
@@ -59,18 +58,6 @@ void callOnMainThread(MainThreadFunction* function, void* context)
     (*callOnMainThreadFunction)(function, context);
 }
 
-static void callFunctionObject(void* context)
-{
-    Function<void()>* function = static_cast<Function<void()>*>(context);
-    (*function)();
-    delete function;
-}
-
-void callOnMainThread(const Function<void()>& function)
-{
-    callOnMainThread(callFunctionObject, new Function<void()>(function));
-}
-
 bool isMainThread()
 {
     return currentThread() == mainThreadIdentifier;