[Utils] Use std::remove_pointer_t (NFC)

Author: kazutakahirata

llvm/include/llvm/Transforms/Utils/SampleProfileInference.h

@@ -119,7 +119,7 @@ void applyFlowInference(FlowFunction &Func);
 template <typename FT> class SampleProfileInference {
 public:
   using NodeRef = typename GraphTraits<FT *>::NodeRef;
-  using BasicBlockT = typename std::remove_pointer<NodeRef>::type;
+  using BasicBlockT = std::remove_pointer_t<NodeRef>;
   using FunctionT = FT;
   using Edge = std::pair<const BasicBlockT *, const BasicBlockT *>;
   using BlockWeightMap = DenseMap<const BasicBlockT *, uint64_t>;

llvm/include/llvm/Transforms/Utils/SampleProfileLoaderBaseImpl.h

@@ -152,7 +152,7 @@ template <typename FT> class SampleProfileLoaderBaseImpl {
   void dump() { Reader->dump(); }
 
   using NodeRef = typename GraphTraits<FT *>::NodeRef;
-  using BT = typename std::remove_pointer<NodeRef>::type;
+  using BT = std::remove_pointer_t<NodeRef>;
   using InstructionT = typename afdo_detail::IRTraits<BT>::InstructionT;
   using BasicBlockT = typename afdo_detail::IRTraits<BT>::BasicBlockT;
   using BlockFrequencyInfoT =