[DevTools] removed PROTOCOL_ARRAY_LENGTH array

third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template

Index: third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template
diff --git a/third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template b/third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template
index 91675cbc43bfa792e916e3aa188c573d817a9bca..3f760287b58f0e5aebfe2fc1fc81063cfb9ed8bf 100644
--- a/third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template
+++ b/third_party/WebKit/Source/platform/inspector_protocol/lib/Collections_h.template
@@ -40,12 +40,4 @@ template <class Key> using HashSet = std::unordered_set<Key>;
 
 #endif // defined(__APPLE__) && !defined(_LIBCPP_VERSION)
 
-// Macro that returns a compile time constant with the length of an array, but gives an error if passed a non-array.
-template<typename T, std::size_t Size> char (&ArrayLengthHelperFunction(T (&)[Size]))[Size];
-// GCC needs some help to deduce a 0 length array.
-#if defined(__GNUC__)
-template<typename T> char (&ArrayLengthHelperFunction(T (&)[0]))[0];
-#endif
-#define PROTOCOL_ARRAY_LENGTH(array) sizeof(::ArrayLengthHelperFunction(array))
-
 #endif // !defined({{"_".join(config.protocol.namespace)}}_Collections_h)