Remove compiler feature detection for = delete

sky/engine/wtf/Noncopyable.h

Index: sky/engine/wtf/Noncopyable.h
diff --git a/sky/engine/wtf/Noncopyable.h b/sky/engine/wtf/Noncopyable.h
index 4be30c427201f334b322df259e4c51ab34e64710..f3321e883319663994acc322f3ef454cc121c195 100644
--- a/sky/engine/wtf/Noncopyable.h
+++ b/sky/engine/wtf/Noncopyable.h
@@ -23,16 +23,9 @@
 
 #include "wtf/Compiler.h"
 
-#if COMPILER_SUPPORTS(CXX_DELETED_FUNCTIONS)
-    #define WTF_MAKE_NONCOPYABLE(ClassName) \
-        private: \
-            ClassName(const ClassName&) = delete; \
-            ClassName& operator=(const ClassName&) = delete;
-#else
-    #define WTF_MAKE_NONCOPYABLE(ClassName) \
-        private: \
-            ClassName(const ClassName&); \
-            ClassName& operator=(const ClassName&)
-#endif
+#define WTF_MAKE_NONCOPYABLE(ClassName) \
+    private: \
+        ClassName(const ClassName&) = delete; \
+        ClassName& operator=(const ClassName&) = delete;
 
 #endif // WTF_Noncopyable_h