clean up

Author: joaosaffran

llvm/lib/Target/DirectX/DXILRootSignature.cpp

@@ -12,7 +12,6 @@
 //===----------------------------------------------------------------------===//
 #include "DXILRootSignature.h"
 #include "DirectX.h"
-#include "llvm/ADT/STLForwardCompat.h"
 #include "llvm/ADT/StringSwitch.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/Analysis/DXILMetadataAnalysis.h"
@@ -28,7 +27,6 @@
 #include "llvm/Support/Error.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/raw_ostream.h"
-#include <cstddef>
 #include <cstdint>
 #include <optional>
 #include <utility>